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Finding the Fourth Proportional to 27,114.72, 40,672.08 and 7,393.20

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Solution

The fourth proportional to 27,114.72, 40,672.08 and 7,393.20 is: 11,089.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,114.72 : 40,672.08 = 7,393.20 : x
  2. Step 2: Convert to fraction form
    27,114.72/40,672.08 = 7,393.20/x
  3. Step 3: Cross multiply
    27,114.72x = 40,672.08 × 7,393.20
  4. Step 4: Simplify right side
    27,114.72x = 300,696,821.86
  5. Step 5: Solve for x
    x = 300,696,821.86/27,114.72
  6. Step 6: Final answer
    x = 11,089.80

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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.