Home / 31,436.96-47,126.14-21,580.88

Finding the Fourth Proportional to 31,436.96, 47,126.14 and 21,580.88

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Solution

The fourth proportional to 31,436.96, 47,126.14 and 21,580.88 is: 32,351.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,436.96 : 47,126.14 = 21,580.88 : x
  2. Step 2: Convert to fraction form
    31,436.96/47,126.14 = 21,580.88/x
  3. Step 3: Cross multiply
    31,436.96x = 47,126.14 × 21,580.88
  4. Step 4: Simplify right side
    31,436.96x = 1,017,023,572.20
  5. Step 5: Solve for x
    x = 1,017,023,572.20/31,436.96
  6. Step 6: Final answer
    x = 32,351.21

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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.