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Finding the Fourth Proportional to 40,617.60, 60,897.60 and 18,441.60

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Solution

The fourth proportional to 40,617.60, 60,897.60 and 18,441.60 is: 27,649.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,617.60 : 60,897.60 = 18,441.60 : x
  2. Step 2: Convert to fraction form
    40,617.60/60,897.60 = 18,441.60/x
  3. Step 3: Cross multiply
    40,617.60x = 60,897.60 × 18,441.60
  4. Step 4: Simplify right side
    40,617.60x = 1,123,049,180.16
  5. Step 5: Solve for x
    x = 1,123,049,180.16/40,617.60
  6. Step 6: Final answer
    x = 27,649.32

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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.