Home / 38,220.08-52,741.94-21,225.41

Finding the Fourth Proportional to 38,220.08, 52,741.94 and 21,225.41

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Solution

The fourth proportional to 38,220.08, 52,741.94 and 21,225.41 is: 29,290.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,220.08 : 52,741.94 = 21,225.41 : x
  2. Step 2: Convert to fraction form
    38,220.08/52,741.94 = 21,225.41/x
  3. Step 3: Cross multiply
    38,220.08x = 52,741.94 × 21,225.41
  4. Step 4: Simplify right side
    38,220.08x = 1,119,468,930.86
  5. Step 5: Solve for x
    x = 1,119,468,930.86/38,220.08
  6. Step 6: Final answer
    x = 29,290.08

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Half scale
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Double scale
Find fourth proportional to 38,221.08, 52,743.31 and 21,226.41
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.