Home / 31,812.18-47,734.68-13,106.04

Finding the Fourth Proportional to 31,812.18, 47,734.68 and 13,106.04

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Solution

The fourth proportional to 31,812.18, 47,734.68 and 13,106.04 is: 19,665.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,812.18 : 47,734.68 = 13,106.04 : x
  2. Step 2: Convert to fraction form
    31,812.18/47,734.68 = 13,106.04/x
  3. Step 3: Cross multiply
    31,812.18x = 47,734.68 × 13,106.04
  4. Step 4: Simplify right side
    31,812.18x = 625,612,625.47
  5. Step 5: Solve for x
    x = 625,612,625.47/31,812.18
  6. Step 6: Final answer
    x = 19,665.82

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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.