Home / 42,321.80-63,437.94-15,650.65

Finding the Fourth Proportional to 42,321.80, 63,437.94 and 15,650.65

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Solution

The fourth proportional to 42,321.80, 63,437.94 and 15,650.65 is: 23,459.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,321.80 : 63,437.94 = 15,650.65 : x
  2. Step 2: Convert to fraction form
    42,321.80/63,437.94 = 15,650.65/x
  3. Step 3: Cross multiply
    42,321.80x = 63,437.94 × 15,650.65
  4. Step 4: Simplify right side
    42,321.80x = 992,844,963.74
  5. Step 5: Solve for x
    x = 992,844,963.74/42,321.80
  6. Step 6: Final answer
    x = 23,459.42

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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.