Home / 20,290.38-30,434.43-5,498.22

Finding the Fourth Proportional to 20,290.38, 30,434.43 and 5,498.22

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Solution

The fourth proportional to 20,290.38, 30,434.43 and 5,498.22 is: 8,247.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,290.38 : 30,434.43 = 5,498.22 : x
  2. Step 2: Convert to fraction form
    20,290.38/30,434.43 = 5,498.22/x
  3. Step 3: Cross multiply
    20,290.38x = 30,434.43 × 5,498.22
  4. Step 4: Simplify right side
    20,290.38x = 167,335,191.71
  5. Step 5: Solve for x
    x = 167,335,191.71/20,290.38
  6. Step 6: Final answer
    x = 8,247.02

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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.