Home / 40,651.83-60,962.61-13,990.38

Finding the Fourth Proportional to 40,651.83, 60,962.61 and 13,990.38

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Solution

The fourth proportional to 40,651.83, 60,962.61 and 13,990.38 is: 20,980.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,651.83 : 60,962.61 = 13,990.38 : x
  2. Step 2: Convert to fraction form
    40,651.83/60,962.61 = 13,990.38/x
  3. Step 3: Cross multiply
    40,651.83x = 60,962.61 × 13,990.38
  4. Step 4: Simplify right side
    40,651.83x = 852,890,079.69
  5. Step 5: Solve for x
    x = 852,890,079.69/40,651.83
  6. Step 6: Final answer
    x = 20,980.36

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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.