Home / 42,562.32-63,857.82-18,866.64

Finding the Fourth Proportional to 42,562.32, 63,857.82 and 18,866.64

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Solution

The fourth proportional to 42,562.32, 63,857.82 and 18,866.64 is: 28,306.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,562.32 : 63,857.82 = 18,866.64 : x
  2. Step 2: Convert to fraction form
    42,562.32/63,857.82 = 18,866.64/x
  3. Step 3: Cross multiply
    42,562.32x = 63,857.82 × 18,866.64
  4. Step 4: Simplify right side
    42,562.32x = 1,204,782,501.12
  5. Step 5: Solve for x
    x = 1,204,782,501.12/42,562.32
  6. Step 6: Final answer
    x = 28,306.32

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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.