Home / 31,535.88-47,278.17-11,803.38

Finding the Fourth Proportional to 31,535.88, 47,278.17 and 11,803.38

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Solution

The fourth proportional to 31,535.88, 47,278.17 and 11,803.38 is: 17,695.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,535.88 : 47,278.17 = 11,803.38 : x
  2. Step 2: Convert to fraction form
    31,535.88/47,278.17 = 11,803.38/x
  3. Step 3: Cross multiply
    31,535.88x = 47,278.17 × 11,803.38
  4. Step 4: Simplify right side
    31,535.88x = 558,042,206.21
  5. Step 5: Solve for x
    x = 558,042,206.21/31,535.88
  6. Step 6: Final answer
    x = 17,695.47

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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.