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Finding the Fourth Proportional to 27,187.60, 40,732.80 and 22,230.40

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Solution

The fourth proportional to 27,187.60, 40,732.80 and 22,230.40 is: 33,305.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,187.60 : 40,732.80 = 22,230.40 : x
  2. Step 2: Convert to fraction form
    27,187.60/40,732.80 = 22,230.40/x
  3. Step 3: Cross multiply
    27,187.60x = 40,732.80 × 22,230.40
  4. Step 4: Simplify right side
    27,187.60x = 905,506,437.12
  5. Step 5: Solve for x
    x = 905,506,437.12/27,187.60
  6. Step 6: Final answer
    x = 33,305.86

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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.