Home / 38,930.13-53,730.43-37,155.20

Finding the Fourth Proportional to 38,930.13, 53,730.43 and 37,155.20

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Solution

The fourth proportional to 38,930.13, 53,730.43 and 37,155.20 is: 51,280.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,930.13 : 53,730.43 = 37,155.20 : x
  2. Step 2: Convert to fraction form
    38,930.13/53,730.43 = 37,155.20/x
  3. Step 3: Cross multiply
    38,930.13x = 53,730.43 × 37,155.20
  4. Step 4: Simplify right side
    38,930.13x = 1,996,364,872.74
  5. Step 5: Solve for x
    x = 1,996,364,872.74/38,930.13
  6. Step 6: Final answer
    x = 51,280.71

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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.