Home / 20,218.68-30,303.18-9,122.22

Finding the Fourth Proportional to 20,218.68, 30,303.18 and 9,122.22

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Solution

The fourth proportional to 20,218.68, 30,303.18 and 9,122.22 is: 13,672.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,218.68 : 30,303.18 = 9,122.22 : x
  2. Step 2: Convert to fraction form
    20,218.68/30,303.18 = 9,122.22/x
  3. Step 3: Cross multiply
    20,218.68x = 30,303.18 × 9,122.22
  4. Step 4: Simplify right side
    20,218.68x = 276,432,274.66
  5. Step 5: Solve for x
    x = 276,432,274.66/20,218.68
  6. Step 6: Final answer
    x = 13,672.12

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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.