Home / 20,596.55-28,423.17-11,165.04

Finding the Fourth Proportional to 20,596.55, 28,423.17 and 11,165.04

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Solution

The fourth proportional to 20,596.55, 28,423.17 and 11,165.04 is: 15,407.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,596.55 : 28,423.17 = 11,165.04 : x
  2. Step 2: Convert to fraction form
    20,596.55/28,423.17 = 11,165.04/x
  3. Step 3: Cross multiply
    20,596.55x = 28,423.17 × 11,165.04
  4. Step 4: Simplify right side
    20,596.55x = 317,345,829.98
  5. Step 5: Solve for x
    x = 317,345,829.98/20,596.55
  6. Step 6: Final answer
    x = 15,407.72

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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.