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Finding the Fourth Proportional to 29,495.28, 44,242.96 and 8,720.40

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Solution

The fourth proportional to 29,495.28, 44,242.96 and 8,720.40 is: 13,080.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,495.28 : 44,242.96 = 8,720.40 : x
  2. Step 2: Convert to fraction form
    29,495.28/44,242.96 = 8,720.40/x
  3. Step 3: Cross multiply
    29,495.28x = 44,242.96 × 8,720.40
  4. Step 4: Simplify right side
    29,495.28x = 385,816,308.38
  5. Step 5: Solve for x
    x = 385,816,308.38/29,495.28
  6. Step 6: Final answer
    x = 13,080.61

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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.