Home / 20,734.65-28,613.88-11,785.11

Finding the Fourth Proportional to 20,734.65, 28,613.88 and 11,785.11

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Solution

The fourth proportional to 20,734.65, 28,613.88 and 11,785.11 is: 16,263.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,734.65 : 28,613.88 = 11,785.11 : x
  2. Step 2: Convert to fraction form
    20,734.65/28,613.88 = 11,785.11/x
  3. Step 3: Cross multiply
    20,734.65x = 28,613.88 × 11,785.11
  4. Step 4: Simplify right side
    20,734.65x = 337,217,723.33
  5. Step 5: Solve for x
    x = 337,217,723.33/20,734.65
  6. Step 6: Final answer
    x = 16,263.49

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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.