Home / 20,476.80-28,255.92-11,523.52

Finding the Fourth Proportional to 20,476.80, 28,255.92 and 11,523.52

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Solution

The fourth proportional to 20,476.80, 28,255.92 and 11,523.52 is: 15,901.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,476.80 : 28,255.92 = 11,523.52 : x
  2. Step 2: Convert to fraction form
    20,476.80/28,255.92 = 11,523.52/x
  3. Step 3: Cross multiply
    20,476.80x = 28,255.92 × 11,523.52
  4. Step 4: Simplify right side
    20,476.80x = 325,607,659.24
  5. Step 5: Solve for x
    x = 325,607,659.24/20,476.80
  6. Step 6: Final answer
    x = 15,901.30

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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.