Home / 42,236.25-63,354.31-19,437.80

Finding the Fourth Proportional to 42,236.25, 63,354.31 and 19,437.80

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Solution

The fourth proportional to 42,236.25, 63,354.31 and 19,437.80 is: 29,156.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,236.25 : 63,354.31 = 19,437.80 : x
  2. Step 2: Convert to fraction form
    42,236.25/63,354.31 = 19,437.80/x
  3. Step 3: Cross multiply
    42,236.25x = 63,354.31 × 19,437.80
  4. Step 4: Simplify right side
    42,236.25x = 1,231,468,406.92
  5. Step 5: Solve for x
    x = 1,231,468,406.92/42,236.25
  6. Step 6: Final answer
    x = 29,156.67

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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.