Home / 20,459.16-28,229.41-11,959.64

Finding the Fourth Proportional to 20,459.16, 28,229.41 and 11,959.64

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Solution

The fourth proportional to 20,459.16, 28,229.41 and 11,959.64 is: 16,501.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,459.16 : 28,229.41 = 11,959.64 : x
  2. Step 2: Convert to fraction form
    20,459.16/28,229.41 = 11,959.64/x
  3. Step 3: Cross multiply
    20,459.16x = 28,229.41 × 11,959.64
  4. Step 4: Simplify right side
    20,459.16x = 337,613,581.01
  5. Step 5: Solve for x
    x = 337,613,581.01/20,459.16
  6. Step 6: Final answer
    x = 16,501.83

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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.