Home / 31,560.76-47,359.50-12,837.88

Finding the Fourth Proportional to 31,560.76, 47,359.50 and 12,837.88

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Solution

The fourth proportional to 31,560.76, 47,359.50 and 12,837.88 is: 19,264.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,560.76 : 47,359.50 = 12,837.88 : x
  2. Step 2: Convert to fraction form
    31,560.76/47,359.50 = 12,837.88/x
  3. Step 3: Cross multiply
    31,560.76x = 47,359.50 × 12,837.88
  4. Step 4: Simplify right side
    31,560.76x = 607,995,577.86
  5. Step 5: Solve for x
    x = 607,995,577.86/31,560.76
  6. Step 6: Final answer
    x = 19,264.29

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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.