Home / 20,932.76-28,859.28-17,935.76

Finding the Fourth Proportional to 20,932.76, 28,859.28 and 17,935.76

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Solution

The fourth proportional to 20,932.76, 28,859.28 and 17,935.76 is: 24,727.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,932.76 : 28,859.28 = 17,935.76 : x
  2. Step 2: Convert to fraction form
    20,932.76/28,859.28 = 17,935.76/x
  3. Step 3: Cross multiply
    20,932.76x = 28,859.28 × 17,935.76
  4. Step 4: Simplify right side
    20,932.76x = 517,613,119.85
  5. Step 5: Solve for x
    x = 517,613,119.85/20,932.76
  6. Step 6: Final answer
    x = 24,727.42

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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.