Home / 20,723.40-28,597.94-11,292.04

Finding the Fourth Proportional to 20,723.40, 28,597.94 and 11,292.04

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Solution

The fourth proportional to 20,723.40, 28,597.94 and 11,292.04 is: 15,582.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723.40 : 28,597.94 = 11,292.04 : x
  2. Step 2: Convert to fraction form
    20,723.40/28,597.94 = 11,292.04/x
  3. Step 3: Cross multiply
    20,723.40x = 28,597.94 × 11,292.04
  4. Step 4: Simplify right side
    20,723.40x = 322,929,082.40
  5. Step 5: Solve for x
    x = 322,929,082.40/20,723.40
  6. Step 6: Final answer
    x = 15,582.82

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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.