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Finding the Fourth Proportional to 29,444.72, 44,121.71 and 13,640.00

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Solution

The fourth proportional to 29,444.72, 44,121.71 and 13,640.00 is: 20,438.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,444.72 : 44,121.71 = 13,640.00 : x
  2. Step 2: Convert to fraction form
    29,444.72/44,121.71 = 13,640.00/x
  3. Step 3: Cross multiply
    29,444.72x = 44,121.71 × 13,640.00
  4. Step 4: Simplify right side
    29,444.72x = 601,819,937.89
  5. Step 5: Solve for x
    x = 601,819,937.89/29,444.72
  6. Step 6: Final answer
    x = 20,438.98

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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.