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Finding the Fourth Proportional to 27,415.40, 41,127.15 and 8,697.20

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Solution

The fourth proportional to 27,415.40, 41,127.15 and 8,697.20 is: 13,047.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,415.40 : 41,127.15 = 8,697.20 : x
  2. Step 2: Convert to fraction form
    27,415.40/41,127.15 = 8,697.20/x
  3. Step 3: Cross multiply
    27,415.40x = 41,127.15 × 8,697.20
  4. Step 4: Simplify right side
    27,415.40x = 357,691,048.98
  5. Step 5: Solve for x
    x = 357,691,048.98/27,415.40
  6. Step 6: Final answer
    x = 13,047.08

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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.