Home / 38,477.88-53,099.52-21,483.08

Finding the Fourth Proportional to 38,477.88, 53,099.52 and 21,483.08

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Solution

The fourth proportional to 38,477.88, 53,099.52 and 21,483.08 is: 29,646.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,477.88 : 53,099.52 = 21,483.08 : x
  2. Step 2: Convert to fraction form
    38,477.88/53,099.52 = 21,483.08/x
  3. Step 3: Cross multiply
    38,477.88x = 53,099.52 × 21,483.08
  4. Step 4: Simplify right side
    38,477.88x = 1,140,741,236.12
  5. Step 5: Solve for x
    x = 1,140,741,236.12/38,477.88
  6. Step 6: Final answer
    x = 29,646.68

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Half scale
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Double scale
Find fourth proportional to 38,478.88, 53,100.90 and 21,484.08
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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.