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Finding the Fourth Proportional to 44,687.88, 66,929.76 and 21,330.72

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Solution

The fourth proportional to 44,687.88, 66,929.76 and 21,330.72 is: 31,947.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,687.88 : 66,929.76 = 21,330.72 : x
  2. Step 2: Convert to fraction form
    44,687.88/66,929.76 = 21,330.72/x
  3. Step 3: Cross multiply
    44,687.88x = 66,929.76 × 21,330.72
  4. Step 4: Simplify right side
    44,687.88x = 1,427,659,970.23
  5. Step 5: Solve for x
    x = 1,427,659,970.23/44,687.88
  6. Step 6: Final answer
    x = 31,947.36

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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.