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Finding the Fourth Proportional to 44,686.78, 66,997.71 and 20,982.13

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Solution

The fourth proportional to 44,686.78, 66,997.71 and 20,982.13 is: 31,457.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,686.78 : 66,997.71 = 20,982.13 : x
  2. Step 2: Convert to fraction form
    44,686.78/66,997.71 = 20,982.13/x
  3. Step 3: Cross multiply
    44,686.78x = 66,997.71 × 20,982.13
  4. Step 4: Simplify right side
    44,686.78x = 1,405,754,660.92
  5. Step 5: Solve for x
    x = 1,405,754,660.92/44,686.78
  6. Step 6: Final answer
    x = 31,457.95

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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.