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Finding the Fourth Proportional to 27,000.48, 40,500.72 and 8,280.57

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Solution

The fourth proportional to 27,000.48, 40,500.72 and 8,280.57 is: 12,420.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,000.48 : 40,500.72 = 8,280.57 : x
  2. Step 2: Convert to fraction form
    27,000.48/40,500.72 = 8,280.57/x
  3. Step 3: Cross multiply
    27,000.48x = 40,500.72 × 8,280.57
  4. Step 4: Simplify right side
    27,000.48x = 335,369,047.01
  5. Step 5: Solve for x
    x = 335,369,047.01/27,000.48
  6. Step 6: Final answer
    x = 12,420.86

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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.