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Finding the Fourth Proportional to 27,327.60, 40,984.20 and 8,607.60

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Solution

The fourth proportional to 27,327.60, 40,984.20 and 8,607.60 is: 12,909.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,327.60 : 40,984.20 = 8,607.60 : x
  2. Step 2: Convert to fraction form
    27,327.60/40,984.20 = 8,607.60/x
  3. Step 3: Cross multiply
    27,327.60x = 40,984.20 × 8,607.60
  4. Step 4: Simplify right side
    27,327.60x = 352,775,599.92
  5. Step 5: Solve for x
    x = 352,775,599.92/27,327.60
  6. Step 6: Final answer
    x = 12,909.13

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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.