Home / 20,797.68-28,701.48-11,366.28

Finding the Fourth Proportional to 20,797.68, 28,701.48 and 11,366.28

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Solution

The fourth proportional to 20,797.68, 28,701.48 and 11,366.28 is: 15,685.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,797.68 : 28,701.48 = 11,366.28 : x
  2. Step 2: Convert to fraction form
    20,797.68/28,701.48 = 11,366.28/x
  3. Step 3: Cross multiply
    20,797.68x = 28,701.48 × 11,366.28
  4. Step 4: Simplify right side
    20,797.68x = 326,229,058.09
  5. Step 5: Solve for x
    x = 326,229,058.09/20,797.68
  6. Step 6: Final answer
    x = 15,685.84

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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.