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Finding the Fourth Proportional to 40,470.80, 60,706.06 and 18,830.12

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Solution

The fourth proportional to 40,470.80, 60,706.06 and 18,830.12 is: 28,245.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,470.80 : 60,706.06 = 18,830.12 : x
  2. Step 2: Convert to fraction form
    40,470.80/60,706.06 = 18,830.12/x
  3. Step 3: Cross multiply
    40,470.80x = 60,706.06 × 18,830.12
  4. Step 4: Simplify right side
    40,470.80x = 1,143,102,394.53
  5. Step 5: Solve for x
    x = 1,143,102,394.53/40,470.80
  6. Step 6: Final answer
    x = 28,245.11

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1.5x scale

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.