Home / 30,819.27-42,531.44-18,244.02

Finding the Fourth Proportional to 30,819.27, 42,531.44 and 18,244.02

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Solution

The fourth proportional to 30,819.27, 42,531.44 and 18,244.02 is: 25,177.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,819.27 : 42,531.44 = 18,244.02 : x
  2. Step 2: Convert to fraction form
    30,819.27/42,531.44 = 18,244.02/x
  3. Step 3: Cross multiply
    30,819.27x = 42,531.44 × 18,244.02
  4. Step 4: Simplify right side
    30,819.27x = 775,944,350.77
  5. Step 5: Solve for x
    x = 775,944,350.77/30,819.27
  6. Step 6: Final answer
    x = 25,177.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.