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Finding the Fourth Proportional to 40,327.70, 60,503.70 and 28,663.70

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Solution

The fourth proportional to 40,327.70, 60,503.70 and 28,663.70 is: 43,004.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,327.70 : 60,503.70 = 28,663.70 : x
  2. Step 2: Convert to fraction form
    40,327.70/60,503.70 = 28,663.70/x
  3. Step 3: Cross multiply
    40,327.70x = 60,503.70 × 28,663.70
  4. Step 4: Simplify right side
    40,327.70x = 1,734,259,905.69
  5. Step 5: Solve for x
    x = 1,734,259,905.69/40,327.70
  6. Step 6: Final answer
    x = 43,004.19

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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.