Home / 31,787.08-43,864.14-17,639.92

Finding the Fourth Proportional to 31,787.08, 43,864.14 and 17,639.92

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Solution

The fourth proportional to 31,787.08, 43,864.14 and 17,639.92 is: 24,341.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,787.08 : 43,864.14 = 17,639.92 : x
  2. Step 2: Convert to fraction form
    31,787.08/43,864.14 = 17,639.92/x
  3. Step 3: Cross multiply
    31,787.08x = 43,864.14 × 17,639.92
  4. Step 4: Simplify right side
    31,787.08x = 773,759,920.47
  5. Step 5: Solve for x
    x = 773,759,920.47/31,787.08
  6. Step 6: Final answer
    x = 24,341.96

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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.