Home / 42,649.64-63,988.64-13,067.76

Finding the Fourth Proportional to 42,649.64, 63,988.64 and 13,067.76

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Solution

The fourth proportional to 42,649.64, 63,988.64 and 13,067.76 is: 19,605.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,649.64 : 63,988.64 = 13,067.76 : x
  2. Step 2: Convert to fraction form
    42,649.64/63,988.64 = 13,067.76/x
  3. Step 3: Cross multiply
    42,649.64x = 63,988.64 × 13,067.76
  4. Step 4: Simplify right side
    42,649.64x = 836,188,190.25
  5. Step 5: Solve for x
    x = 836,188,190.25/42,649.64
  6. Step 6: Final answer
    x = 19,605.98

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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.