Home / 20,134.52-30,172.59-11,350.70

Finding the Fourth Proportional to 20,134.52, 30,172.59 and 11,350.70

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Solution

The fourth proportional to 20,134.52, 30,172.59 and 11,350.70 is: 17,009.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,134.52 : 30,172.59 = 11,350.70 : x
  2. Step 2: Convert to fraction form
    20,134.52/30,172.59 = 11,350.70/x
  3. Step 3: Cross multiply
    20,134.52x = 30,172.59 × 11,350.70
  4. Step 4: Simplify right side
    20,134.52x = 342,480,017.31
  5. Step 5: Solve for x
    x = 342,480,017.31/20,134.52
  6. Step 6: Final answer
    x = 17,009.59

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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.