Home / 20,239.52-30,362.94-9,151.43

Finding the Fourth Proportional to 20,239.52, 30,362.94 and 9,151.43

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Solution

The fourth proportional to 20,239.52, 30,362.94 and 9,151.43 is: 13,728.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,239.52 : 30,362.94 = 9,151.43 : x
  2. Step 2: Convert to fraction form
    20,239.52/30,362.94 = 9,151.43/x
  3. Step 3: Cross multiply
    20,239.52x = 30,362.94 × 9,151.43
  4. Step 4: Simplify right side
    20,239.52x = 277,864,320.00
  5. Step 5: Solve for x
    x = 277,864,320.00/20,239.52
  6. Step 6: Final answer
    x = 13,728.80

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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.