Home / 20,482.19-28,265.49-11,529.83

Finding the Fourth Proportional to 20,482.19, 28,265.49 and 11,529.83

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Solution

The fourth proportional to 20,482.19, 28,265.49 and 11,529.83 is: 15,911.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,482.19 : 28,265.49 = 11,529.83 : x
  2. Step 2: Convert to fraction form
    20,482.19/28,265.49 = 11,529.83/x
  3. Step 3: Cross multiply
    20,482.19x = 28,265.49 × 11,529.83
  4. Step 4: Simplify right side
    20,482.19x = 325,896,236.92
  5. Step 5: Solve for x
    x = 325,896,236.92/20,482.19
  6. Step 6: Final answer
    x = 15,911.20

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Double scale
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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.