Home / 31,355.89-47,041.01-13,589.53

Finding the Fourth Proportional to 31,355.89, 47,041.01 and 13,589.53

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Solution

The fourth proportional to 31,355.89, 47,041.01 and 13,589.53 is: 20,387.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,355.89 : 47,041.01 = 13,589.53 : x
  2. Step 2: Convert to fraction form
    31,355.89/47,041.01 = 13,589.53/x
  3. Step 3: Cross multiply
    31,355.89x = 47,041.01 × 13,589.53
  4. Step 4: Simplify right side
    31,355.89x = 639,265,252.56
  5. Step 5: Solve for x
    x = 639,265,252.56/31,355.89
  6. Step 6: Final answer
    x = 20,387.41

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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.