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Finding the Fourth Proportional to 36,309.92, 54,426.16 and 20,693.92

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Solution

The fourth proportional to 36,309.92, 54,426.16 and 20,693.92 is: 31,018.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,309.92 : 54,426.16 = 20,693.92 : x
  2. Step 2: Convert to fraction form
    36,309.92/54,426.16 = 20,693.92/x
  3. Step 3: Cross multiply
    36,309.92x = 54,426.16 × 20,693.92
  4. Step 4: Simplify right side
    36,309.92x = 1,126,290,600.95
  5. Step 5: Solve for x
    x = 1,126,290,600.95/36,309.92
  6. Step 6: Final answer
    x = 31,018.81

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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.