Home / 28,346.22-42,519.33-20,125.49

Finding the Fourth Proportional to 28,346.22, 42,519.33 and 20,125.49

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Solution

The fourth proportional to 28,346.22, 42,519.33 and 20,125.49 is: 30,188.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,346.22 : 42,519.33 = 20,125.49 : x
  2. Step 2: Convert to fraction form
    28,346.22/42,519.33 = 20,125.49/x
  3. Step 3: Cross multiply
    28,346.22x = 42,519.33 × 20,125.49
  4. Step 4: Simplify right side
    28,346.22x = 855,722,138.13
  5. Step 5: Solve for x
    x = 855,722,138.13/28,346.22
  6. Step 6: Final answer
    x = 30,188.23

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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.