Home / 28,101.91-38,798.72-18,034.69

Finding the Fourth Proportional to 28,101.91, 38,798.72 and 18,034.69

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Solution

The fourth proportional to 28,101.91, 38,798.72 and 18,034.69 is: 24,899.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,101.91 : 38,798.72 = 18,034.69 : x
  2. Step 2: Convert to fraction form
    28,101.91/38,798.72 = 18,034.69/x
  3. Step 3: Cross multiply
    28,101.91x = 38,798.72 × 18,034.69
  4. Step 4: Simplify right side
    28,101.91x = 699,722,797.42
  5. Step 5: Solve for x
    x = 699,722,797.42/28,101.91
  6. Step 6: Final answer
    x = 24,899.47

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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.