Home / 42,517.09-63,736.28-18,812.07

Finding the Fourth Proportional to 42,517.09, 63,736.28 and 18,812.07

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Solution

The fourth proportional to 42,517.09, 63,736.28 and 18,812.07 is: 28,200.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,517.09 : 63,736.28 = 18,812.07 : x
  2. Step 2: Convert to fraction form
    42,517.09/63,736.28 = 18,812.07/x
  3. Step 3: Cross multiply
    42,517.09x = 63,736.28 × 18,812.07
  4. Step 4: Simplify right side
    42,517.09x = 1,199,011,443.20
  5. Step 5: Solve for x
    x = 1,199,011,443.20/42,517.09
  6. Step 6: Final answer
    x = 28,200.69

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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.