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Finding the Fourth Proportional to 40,327.60, 60,491.40 and 28,663.60

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Solution

The fourth proportional to 40,327.60, 60,491.40 and 28,663.60 is: 42,995.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,327.60 : 60,491.40 = 28,663.60 : x
  2. Step 2: Convert to fraction form
    40,327.60/60,491.40 = 28,663.60/x
  3. Step 3: Cross multiply
    40,327.60x = 60,491.40 × 28,663.60
  4. Step 4: Simplify right side
    40,327.60x = 1,733,901,293.04
  5. Step 5: Solve for x
    x = 1,733,901,293.04/40,327.60
  6. Step 6: Final answer
    x = 42,995.40

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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.