Home / 31,787.90-43,867.27-17,640.71

Finding the Fourth Proportional to 31,787.90, 43,867.27 and 17,640.71

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Solution

The fourth proportional to 31,787.90, 43,867.27 and 17,640.71 is: 24,344.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,787.90 : 43,867.27 = 17,640.71 : x
  2. Step 2: Convert to fraction form
    31,787.90/43,867.27 = 17,640.71/x
  3. Step 3: Cross multiply
    31,787.90x = 43,867.27 × 17,640.71
  4. Step 4: Simplify right side
    31,787.90x = 773,849,788.56
  5. Step 5: Solve for x
    x = 773,849,788.56/31,787.90
  6. Step 6: Final answer
    x = 24,344.16

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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.