Home / 31,385.88-47,072.61-15,574.41

Finding the Fourth Proportional to 31,385.88, 47,072.61 and 15,574.41

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Solution

The fourth proportional to 31,385.88, 47,072.61 and 15,574.41 is: 23,358.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,385.88 : 47,072.61 = 15,574.41 : x
  2. Step 2: Convert to fraction form
    31,385.88/47,072.61 = 15,574.41/x
  3. Step 3: Cross multiply
    31,385.88x = 47,072.61 × 15,574.41
  4. Step 4: Simplify right side
    31,385.88x = 733,128,127.91
  5. Step 5: Solve for x
    x = 733,128,127.91/31,385.88
  6. Step 6: Final answer
    x = 23,358.53

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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.