Home / 18,882.90-28,356.93-13,934.79

Finding the Fourth Proportional to 18,882.90, 28,356.93 and 13,934.79

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Solution

The fourth proportional to 18,882.90, 28,356.93 and 13,934.79 is: 20,926.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,882.90 : 28,356.93 = 13,934.79 : x
  2. Step 2: Convert to fraction form
    18,882.90/28,356.93 = 13,934.79/x
  3. Step 3: Cross multiply
    18,882.90x = 28,356.93 × 13,934.79
  4. Step 4: Simplify right side
    18,882.90x = 395,147,864.59
  5. Step 5: Solve for x
    x = 395,147,864.59/18,882.90
  6. Step 6: Final answer
    x = 20,926.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.