Home / 38,500.61-53,132.60-21,275.39

Finding the Fourth Proportional to 38,500.61, 53,132.60 and 21,275.39

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Solution

The fourth proportional to 38,500.61, 53,132.60 and 21,275.39 is: 29,361.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,500.61 : 53,132.60 = 21,275.39 : x
  2. Step 2: Convert to fraction form
    38,500.61/53,132.60 = 21,275.39/x
  3. Step 3: Cross multiply
    38,500.61x = 53,132.60 × 21,275.39
  4. Step 4: Simplify right side
    38,500.61x = 1,130,416,972.73
  5. Step 5: Solve for x
    x = 1,130,416,972.73/38,500.61
  6. Step 6: Final answer
    x = 29,361.02

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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.