Home / 38,216.61-52,739.10-21,221.19

Finding the Fourth Proportional to 38,216.61, 52,739.10 and 21,221.19

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Solution

The fourth proportional to 38,216.61, 52,739.10 and 21,221.19 is: 29,285.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,216.61 : 52,739.10 = 21,221.19 : x
  2. Step 2: Convert to fraction form
    38,216.61/52,739.10 = 21,221.19/x
  3. Step 3: Cross multiply
    38,216.61x = 52,739.10 × 21,221.19
  4. Step 4: Simplify right side
    38,216.61x = 1,119,186,461.53
  5. Step 5: Solve for x
    x = 1,119,186,461.53/38,216.61
  6. Step 6: Final answer
    x = 29,285.34

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Half scale
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Double scale
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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.