Home / 31,451.12-47,166.68-10,387.23

Finding the Fourth Proportional to 31,451.12, 47,166.68 and 10,387.23

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Solution

The fourth proportional to 31,451.12, 47,166.68 and 10,387.23 is: 15,577.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,451.12 : 47,166.68 = 10,387.23 : x
  2. Step 2: Convert to fraction form
    31,451.12/47,166.68 = 10,387.23/x
  3. Step 3: Cross multiply
    31,451.12x = 47,166.68 × 10,387.23
  4. Step 4: Simplify right side
    31,451.12x = 489,931,153.50
  5. Step 5: Solve for x
    x = 489,931,153.50/31,451.12
  6. Step 6: Final answer
    x = 15,577.54

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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.