Home / 20,480.68-28,263.72-12,097.18

Finding the Fourth Proportional to 20,480.68, 28,263.72 and 12,097.18

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Solution

The fourth proportional to 20,480.68, 28,263.72 and 12,097.18 is: 16,694.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,480.68 : 28,263.72 = 12,097.18 : x
  2. Step 2: Convert to fraction form
    20,480.68/28,263.72 = 12,097.18/x
  3. Step 3: Cross multiply
    20,480.68x = 28,263.72 × 12,097.18
  4. Step 4: Simplify right side
    20,480.68x = 341,911,308.31
  5. Step 5: Solve for x
    x = 341,911,308.31/20,480.68
  6. Step 6: Final answer
    x = 16,694.33

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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.