Home / 20,231.52-30,300.80-19,531.08

Finding the Fourth Proportional to 20,231.52, 30,300.80 and 19,531.08

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Solution

The fourth proportional to 20,231.52, 30,300.80 and 19,531.08 is: 29,251.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231.52 : 30,300.80 = 19,531.08 : x
  2. Step 2: Convert to fraction form
    20,231.52/30,300.80 = 19,531.08/x
  3. Step 3: Cross multiply
    20,231.52x = 30,300.80 × 19,531.08
  4. Step 4: Simplify right side
    20,231.52x = 591,807,348.86
  5. Step 5: Solve for x
    x = 591,807,348.86/20,231.52
  6. Step 6: Final answer
    x = 29,251.75

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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.