Home / 31,411.94-47,118.98-15,821.06

Finding the Fourth Proportional to 31,411.94, 47,118.98 and 15,821.06

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Solution

The fourth proportional to 31,411.94, 47,118.98 and 15,821.06 is: 23,732.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,411.94 : 47,118.98 = 15,821.06 : x
  2. Step 2: Convert to fraction form
    31,411.94/47,118.98 = 15,821.06/x
  3. Step 3: Cross multiply
    31,411.94x = 47,118.98 × 15,821.06
  4. Step 4: Simplify right side
    31,411.94x = 745,472,013.68
  5. Step 5: Solve for x
    x = 745,472,013.68/31,411.94
  6. Step 6: Final answer
    x = 23,732.13

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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.