Home / 31,854.65-47,787.72-13,124.45

Finding the Fourth Proportional to 31,854.65, 47,787.72 and 13,124.45

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Solution

The fourth proportional to 31,854.65, 47,787.72 and 13,124.45 is: 19,689.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,854.65 : 47,787.72 = 13,124.45 : x
  2. Step 2: Convert to fraction form
    31,854.65/47,787.72 = 13,124.45/x
  3. Step 3: Cross multiply
    31,854.65x = 47,787.72 × 13,124.45
  4. Step 4: Simplify right side
    31,854.65x = 627,187,541.75
  5. Step 5: Solve for x
    x = 627,187,541.75/31,854.65
  6. Step 6: Final answer
    x = 19,689.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.