Home / 20,482.27-28,263.33-11,529.61

Finding the Fourth Proportional to 20,482.27, 28,263.33 and 11,529.61

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Solution

The fourth proportional to 20,482.27, 28,263.33 and 11,529.61 is: 15,909.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,482.27 : 28,263.33 = 11,529.61 : x
  2. Step 2: Convert to fraction form
    20,482.27/28,263.33 = 11,529.61/x
  3. Step 3: Cross multiply
    20,482.27x = 28,263.33 × 11,529.61
  4. Step 4: Simplify right side
    20,482.27x = 325,865,101.54
  5. Step 5: Solve for x
    x = 325,865,101.54/20,482.27
  6. Step 6: Final answer
    x = 15,909.62

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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.