Home / 20,702.64-31,053.24-6,851.52

Finding the Fourth Proportional to 20,702.64, 31,053.24 and 6,851.52

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Solution

The fourth proportional to 20,702.64, 31,053.24 and 6,851.52 is: 10,277.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,702.64 : 31,053.24 = 6,851.52 : x
  2. Step 2: Convert to fraction form
    20,702.64/31,053.24 = 6,851.52/x
  3. Step 3: Cross multiply
    20,702.64x = 31,053.24 × 6,851.52
  4. Step 4: Simplify right side
    20,702.64x = 212,761,894.92
  5. Step 5: Solve for x
    x = 212,761,894.92/20,702.64
  6. Step 6: Final answer
    x = 10,277.04

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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.