Home / 20,344.68-28,074.52-11,392.04

Finding the Fourth Proportional to 20,344.68, 28,074.52 and 11,392.04

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Solution

The fourth proportional to 20,344.68, 28,074.52 and 11,392.04 is: 15,720.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,344.68 : 28,074.52 = 11,392.04 : x
  2. Step 2: Convert to fraction form
    20,344.68/28,074.52 = 11,392.04/x
  3. Step 3: Cross multiply
    20,344.68x = 28,074.52 × 11,392.04
  4. Step 4: Simplify right side
    20,344.68x = 319,826,054.82
  5. Step 5: Solve for x
    x = 319,826,054.82/20,344.68
  6. Step 6: Final answer
    x = 15,720.38

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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.