Home / 28,022.06-38,670.74-16,691.72

Finding the Fourth Proportional to 28,022.06, 38,670.74 and 16,691.72

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Solution

The fourth proportional to 28,022.06, 38,670.74 and 16,691.72 is: 23,034.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,022.06 : 38,670.74 = 16,691.72 : x
  2. Step 2: Convert to fraction form
    28,022.06/38,670.74 = 16,691.72/x
  3. Step 3: Cross multiply
    28,022.06x = 38,670.74 × 16,691.72
  4. Step 4: Simplify right side
    28,022.06x = 645,481,164.27
  5. Step 5: Solve for x
    x = 645,481,164.27/28,022.06
  6. Step 6: Final answer
    x = 23,034.75

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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.