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Finding the Fourth Proportional to 29,250.40, 43,778.40 and 20,502.40

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Solution

The fourth proportional to 29,250.40, 43,778.40 and 20,502.40 is: 30,685.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,250.40 : 43,778.40 = 20,502.40 : x
  2. Step 2: Convert to fraction form
    29,250.40/43,778.40 = 20,502.40/x
  3. Step 3: Cross multiply
    29,250.40x = 43,778.40 × 20,502.40
  4. Step 4: Simplify right side
    29,250.40x = 897,562,268.16
  5. Step 5: Solve for x
    x = 897,562,268.16/29,250.40
  6. Step 6: Final answer
    x = 30,685.47

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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.