Home / 42,186.28-63,394.38-22,478.92

Finding the Fourth Proportional to 42,186.28, 63,394.38 and 22,478.92

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Solution

The fourth proportional to 42,186.28, 63,394.38 and 22,478.92 is: 33,779.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,186.28 : 63,394.38 = 22,478.92 : x
  2. Step 2: Convert to fraction form
    42,186.28/63,394.38 = 22,478.92/x
  3. Step 3: Cross multiply
    42,186.28x = 63,394.38 × 22,478.92
  4. Step 4: Simplify right side
    42,186.28x = 1,425,037,196.47
  5. Step 5: Solve for x
    x = 1,425,037,196.47/42,186.28
  6. Step 6: Final answer
    x = 33,779.64

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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.