Home / 20,254.16-30,339.56-17,920.22

Finding the Fourth Proportional to 20,254.16, 30,339.56 and 17,920.22

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Solution

The fourth proportional to 20,254.16, 30,339.56 and 17,920.22 is: 26,843.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,254.16 : 30,339.56 = 17,920.22 : x
  2. Step 2: Convert to fraction form
    20,254.16/30,339.56 = 17,920.22/x
  3. Step 3: Cross multiply
    20,254.16x = 30,339.56 × 17,920.22
  4. Step 4: Simplify right side
    20,254.16x = 543,691,589.90
  5. Step 5: Solve for x
    x = 543,691,589.90/20,254.16
  6. Step 6: Final answer
    x = 26,843.45

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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.