Home / 31,460.97-47,158.66-12,753.92

Finding the Fourth Proportional to 31,460.97, 47,158.66 and 12,753.92

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Solution

The fourth proportional to 31,460.97, 47,158.66 and 12,753.92 is: 19,117.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,460.97 : 47,158.66 = 12,753.92 : x
  2. Step 2: Convert to fraction form
    31,460.97/47,158.66 = 12,753.92/x
  3. Step 3: Cross multiply
    31,460.97x = 47,158.66 × 12,753.92
  4. Step 4: Simplify right side
    31,460.97x = 601,457,839.05
  5. Step 5: Solve for x
    x = 601,457,839.05/31,460.97
  6. Step 6: Final answer
    x = 19,117.58

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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.