Home / 31,324.97-47,010.81-12,605.17

Finding the Fourth Proportional to 31,324.97, 47,010.81 and 12,605.17

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Solution

The fourth proportional to 31,324.97, 47,010.81 and 12,605.17 is: 18,917.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,324.97 : 47,010.81 = 12,605.17 : x
  2. Step 2: Convert to fraction form
    31,324.97/47,010.81 = 12,605.17/x
  3. Step 3: Cross multiply
    31,324.97x = 47,010.81 × 12,605.17
  4. Step 4: Simplify right side
    31,324.97x = 592,579,251.89
  5. Step 5: Solve for x
    x = 592,579,251.89/31,324.97
  6. Step 6: Final answer
    x = 18,917.15

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1.5x scale

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.