Home / 31,467.78-47,209.95-15,677.46

Finding the Fourth Proportional to 31,467.78, 47,209.95 and 15,677.46

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Solution

The fourth proportional to 31,467.78, 47,209.95 and 15,677.46 is: 23,520.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,467.78 : 47,209.95 = 15,677.46 : x
  2. Step 2: Convert to fraction form
    31,467.78/47,209.95 = 15,677.46/x
  3. Step 3: Cross multiply
    31,467.78x = 47,209.95 × 15,677.46
  4. Step 4: Simplify right side
    31,467.78x = 740,132,102.73
  5. Step 5: Solve for x
    x = 740,132,102.73/31,467.78
  6. Step 6: Final answer
    x = 23,520.32

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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.