Home / 28,246.78-38,968.24-17,488.79

Finding the Fourth Proportional to 28,246.78, 38,968.24 and 17,488.79

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Solution

The fourth proportional to 28,246.78, 38,968.24 and 17,488.79 is: 24,126.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,246.78 : 38,968.24 = 17,488.79 : x
  2. Step 2: Convert to fraction form
    28,246.78/38,968.24 = 17,488.79/x
  3. Step 3: Cross multiply
    28,246.78x = 38,968.24 × 17,488.79
  4. Step 4: Simplify right side
    28,246.78x = 681,507,366.03
  5. Step 5: Solve for x
    x = 681,507,366.03/28,246.78
  6. Step 6: Final answer
    x = 24,126.90

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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.