Home / 25,976.70-38,928.60-18,176.40

Finding the Fourth Proportional to 25,976.70, 38,928.60 and 18,176.40

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Solution

The fourth proportional to 25,976.70, 38,928.60 and 18,176.40 is: 27,239.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,976.70 : 38,928.60 = 18,176.40 : x
  2. Step 2: Convert to fraction form
    25,976.70/38,928.60 = 18,176.40/x
  3. Step 3: Cross multiply
    25,976.70x = 38,928.60 × 18,176.40
  4. Step 4: Simplify right side
    25,976.70x = 707,581,805.04
  5. Step 5: Solve for x
    x = 707,581,805.04/25,976.70
  6. Step 6: Final answer
    x = 27,239.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.