Home / 20,235.52-30,349.11-5,440.92

Finding the Fourth Proportional to 20,235.52, 30,349.11 and 5,440.92

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Solution

The fourth proportional to 20,235.52, 30,349.11 and 5,440.92 is: 8,160.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,235.52 : 30,349.11 = 5,440.92 : x
  2. Step 2: Convert to fraction form
    20,235.52/30,349.11 = 5,440.92/x
  3. Step 3: Cross multiply
    20,235.52x = 30,349.11 × 5,440.92
  4. Step 4: Simplify right side
    20,235.52x = 165,127,110.98
  5. Step 5: Solve for x
    x = 165,127,110.98/20,235.52
  6. Step 6: Final answer
    x = 8,160.26

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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.