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Finding the Fourth Proportional to 27,245.40, 40,868.10 and 9,715.80

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Solution

The fourth proportional to 27,245.40, 40,868.10 and 9,715.80 is: 14,573.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,245.40 : 40,868.10 = 9,715.80 : x
  2. Step 2: Convert to fraction form
    27,245.40/40,868.10 = 9,715.80/x
  3. Step 3: Cross multiply
    27,245.40x = 40,868.10 × 9,715.80
  4. Step 4: Simplify right side
    27,245.40x = 397,066,285.98
  5. Step 5: Solve for x
    x = 397,066,285.98/27,245.40
  6. Step 6: Final answer
    x = 14,573.70

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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.