Home / 31,445.93-47,170.28-10,387.82

Finding the Fourth Proportional to 31,445.93, 47,170.28 and 10,387.82

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Solution

The fourth proportional to 31,445.93, 47,170.28 and 10,387.82 is: 15,582.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,445.93 : 47,170.28 = 10,387.82 : x
  2. Step 2: Convert to fraction form
    31,445.93/47,170.28 = 10,387.82/x
  3. Step 3: Cross multiply
    31,445.93x = 47,170.28 × 10,387.82
  4. Step 4: Simplify right side
    31,445.93x = 489,996,521.88
  5. Step 5: Solve for x
    x = 489,996,521.88/31,445.93
  6. Step 6: Final answer
    x = 15,582.19

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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.