Home / 28,159.54-38,869.88-16,227.63

Finding the Fourth Proportional to 28,159.54, 38,869.88 and 16,227.63

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Solution

The fourth proportional to 28,159.54, 38,869.88 and 16,227.63 is: 22,399.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,159.54 : 38,869.88 = 16,227.63 : x
  2. Step 2: Convert to fraction form
    28,159.54/38,869.88 = 16,227.63/x
  3. Step 3: Cross multiply
    28,159.54x = 38,869.88 × 16,227.63
  4. Step 4: Simplify right side
    28,159.54x = 630,765,949.65
  5. Step 5: Solve for x
    x = 630,765,949.65/28,159.54
  6. Step 6: Final answer
    x = 22,399.73

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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.