Home / 42,429.44-63,645.20-11,264.64

Finding the Fourth Proportional to 42,429.44, 63,645.20 and 11,264.64

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Solution

The fourth proportional to 42,429.44, 63,645.20 and 11,264.64 is: 16,897.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,429.44 : 63,645.20 = 11,264.64 : x
  2. Step 2: Convert to fraction form
    42,429.44/63,645.20 = 11,264.64/x
  3. Step 3: Cross multiply
    42,429.44x = 63,645.20 × 11,264.64
  4. Step 4: Simplify right side
    42,429.44x = 716,940,265.73
  5. Step 5: Solve for x
    x = 716,940,265.73/42,429.44
  6. Step 6: Final answer
    x = 16,897.24

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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.