Home / 40,695.97-61,061.38-20,988.37

Finding the Fourth Proportional to 40,695.97, 61,061.38 and 20,988.37

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Solution

The fourth proportional to 40,695.97, 61,061.38 and 20,988.37 is: 31,491.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,695.97 : 61,061.38 = 20,988.37 : x
  2. Step 2: Convert to fraction form
    40,695.97/61,061.38 = 20,988.37/x
  3. Step 3: Cross multiply
    40,695.97x = 61,061.38 × 20,988.37
  4. Step 4: Simplify right side
    40,695.97x = 1,281,578,836.15
  5. Step 5: Solve for x
    x = 1,281,578,836.15/40,695.97
  6. Step 6: Final answer
    x = 31,491.54

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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.