Home / 38,737.92-53,455.68-21,740.16

Finding the Fourth Proportional to 38,737.92, 53,455.68 and 21,740.16

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Solution

The fourth proportional to 38,737.92, 53,455.68 and 21,740.16 is: 29,999.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,737.92 : 53,455.68 = 21,740.16 : x
  2. Step 2: Convert to fraction form
    38,737.92/53,455.68 = 21,740.16/x
  3. Step 3: Cross multiply
    38,737.92x = 53,455.68 × 21,740.16
  4. Step 4: Simplify right side
    38,737.92x = 1,162,135,036.11
  5. Step 5: Solve for x
    x = 1,162,135,036.11/38,737.92
  6. Step 6: Final answer
    x = 29,999.93

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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.