Home / 20,122.23-30,166.19-8,869.11

Finding the Fourth Proportional to 20,122.23, 30,166.19 and 8,869.11

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Solution

The fourth proportional to 20,122.23, 30,166.19 and 8,869.11 is: 13,296.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,122.23 : 30,166.19 = 8,869.11 : x
  2. Step 2: Convert to fraction form
    20,122.23/30,166.19 = 8,869.11/x
  3. Step 3: Cross multiply
    20,122.23x = 30,166.19 × 8,869.11
  4. Step 4: Simplify right side
    20,122.23x = 267,547,213.05
  5. Step 5: Solve for x
    x = 267,547,213.05/20,122.23
  6. Step 6: Final answer
    x = 13,296.10

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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.