Home / 20,596.68-28,423.17-11,165.13

Finding the Fourth Proportional to 20,596.68, 28,423.17 and 11,165.13

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Solution

The fourth proportional to 20,596.68, 28,423.17 and 11,165.13 is: 15,407.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,596.68 : 28,423.17 = 11,165.13 : x
  2. Step 2: Convert to fraction form
    20,596.68/28,423.17 = 11,165.13/x
  3. Step 3: Cross multiply
    20,596.68x = 28,423.17 × 11,165.13
  4. Step 4: Simplify right side
    20,596.68x = 317,348,388.06
  5. Step 5: Solve for x
    x = 317,348,388.06/20,596.68
  6. Step 6: Final answer
    x = 15,407.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.