Home / 28,219.30-38,934.21-16,282.42

Finding the Fourth Proportional to 28,219.30, 38,934.21 and 16,282.42

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Solution

The fourth proportional to 28,219.30, 38,934.21 and 16,282.42 is: 22,464.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,219.30 : 38,934.21 = 16,282.42 : x
  2. Step 2: Convert to fraction form
    28,219.30/38,934.21 = 16,282.42/x
  3. Step 3: Cross multiply
    28,219.30x = 38,934.21 × 16,282.42
  4. Step 4: Simplify right side
    28,219.30x = 633,943,159.59
  5. Step 5: Solve for x
    x = 633,943,159.59/28,219.30
  6. Step 6: Final answer
    x = 22,464.88

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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.