Home / 42,487.26-63,729.81-11,322.42

Finding the Fourth Proportional to 42,487.26, 63,729.81 and 11,322.42

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Solution

The fourth proportional to 42,487.26, 63,729.81 and 11,322.42 is: 16,983.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,487.26 : 63,729.81 = 11,322.42 : x
  2. Step 2: Convert to fraction form
    42,487.26/63,729.81 = 11,322.42/x
  3. Step 3: Cross multiply
    42,487.26x = 63,729.81 × 11,322.42
  4. Step 4: Simplify right side
    42,487.26x = 721,575,675.34
  5. Step 5: Solve for x
    x = 721,575,675.34/42,487.26
  6. Step 6: Final answer
    x = 16,983.34

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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.