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Finding the Fourth Proportional to 40,197.60, 60,301.80 and 13,910.40

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Solution

The fourth proportional to 40,197.60, 60,301.80 and 13,910.40 is: 20,867.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,197.60 : 60,301.80 = 13,910.40 : x
  2. Step 2: Convert to fraction form
    40,197.60/60,301.80 = 13,910.40/x
  3. Step 3: Cross multiply
    40,197.60x = 60,301.80 × 13,910.40
  4. Step 4: Simplify right side
    40,197.60x = 838,822,158.72
  5. Step 5: Solve for x
    x = 838,822,158.72/40,197.60
  6. Step 6: Final answer
    x = 20,867.47

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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.