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Finding the Fourth Proportional to 40,476.53, 60,719.88 and 21,730.80

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Solution

The fourth proportional to 40,476.53, 60,719.88 and 21,730.80 is: 32,598.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,476.53 : 60,719.88 = 21,730.80 : x
  2. Step 2: Convert to fraction form
    40,476.53/60,719.88 = 21,730.80/x
  3. Step 3: Cross multiply
    40,476.53x = 60,719.88 × 21,730.80
  4. Step 4: Simplify right side
    40,476.53x = 1,319,491,413.71
  5. Step 5: Solve for x
    x = 1,319,491,413.71/40,476.53
  6. Step 6: Final answer
    x = 32,598.93

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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.