Home / 43,240.92-64,864.08-13,659.90

Finding the Fourth Proportional to 43,240.92, 64,864.08 and 13,659.90

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Solution

The fourth proportional to 43,240.92, 64,864.08 and 13,659.90 is: 20,490.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,240.92 : 64,864.08 = 13,659.90 : x
  2. Step 2: Convert to fraction form
    43,240.92/64,864.08 = 13,659.90/x
  3. Step 3: Cross multiply
    43,240.92x = 64,864.08 × 13,659.90
  4. Step 4: Simplify right side
    43,240.92x = 886,036,846.39
  5. Step 5: Solve for x
    x = 886,036,846.39/43,240.92
  6. Step 6: Final answer
    x = 20,490.70

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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.