Home / 31,608.76-47,393.64-13,575.52

Finding the Fourth Proportional to 31,608.76, 47,393.64 and 13,575.52

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Solution

The fourth proportional to 31,608.76, 47,393.64 and 13,575.52 is: 20,354.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,608.76 : 47,393.64 = 13,575.52 : x
  2. Step 2: Convert to fraction form
    31,608.76/47,393.64 = 13,575.52/x
  3. Step 3: Cross multiply
    31,608.76x = 47,393.64 × 13,575.52
  4. Step 4: Simplify right side
    31,608.76x = 643,393,307.69
  5. Step 5: Solve for x
    x = 643,393,307.69/31,608.76
  6. Step 6: Final answer
    x = 20,354.91

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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.