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Finding the Fourth Proportional to 32,659.92, 45,019.50 and 21,309.38

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Solution

The fourth proportional to 32,659.92, 45,019.50 and 21,309.38 is: 29,373.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,659.92 : 45,019.50 = 21,309.38 : x
  2. Step 2: Convert to fraction form
    32,659.92/45,019.50 = 21,309.38/x
  3. Step 3: Cross multiply
    32,659.92x = 45,019.50 × 21,309.38
  4. Step 4: Simplify right side
    32,659.92x = 959,337,632.91
  5. Step 5: Solve for x
    x = 959,337,632.91/32,659.92
  6. Step 6: Final answer
    x = 29,373.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.