Home / 28,348.22-42,522.33-20,127.49

Finding the Fourth Proportional to 28,348.22, 42,522.33 and 20,127.49

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Solution

The fourth proportional to 28,348.22, 42,522.33 and 20,127.49 is: 30,191.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,348.22 : 42,522.33 = 20,127.49 : x
  2. Step 2: Convert to fraction form
    28,348.22/42,522.33 = 20,127.49/x
  3. Step 3: Cross multiply
    28,348.22x = 42,522.33 × 20,127.49
  4. Step 4: Simplify right side
    28,348.22x = 855,867,771.85
  5. Step 5: Solve for x
    x = 855,867,771.85/28,348.22
  6. Step 6: Final answer
    x = 30,191.24

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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.