Home / 42,486.75-63,730.13-20,232.66

Finding the Fourth Proportional to 42,486.75, 63,730.13 and 20,232.66

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Solution

The fourth proportional to 42,486.75, 63,730.13 and 20,232.66 is: 30,348.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,486.75 : 63,730.13 = 20,232.66 : x
  2. Step 2: Convert to fraction form
    42,486.75/63,730.13 = 20,232.66/x
  3. Step 3: Cross multiply
    42,486.75x = 63,730.13 × 20,232.66
  4. Step 4: Simplify right side
    42,486.75x = 1,289,429,950.88
  5. Step 5: Solve for x
    x = 1,289,429,950.88/42,486.75
  6. Step 6: Final answer
    x = 30,348.99

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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.