Home / 25,721.74-38,572.80-9,078.67

Finding the Fourth Proportional to 25,721.74, 38,572.80 and 9,078.67

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Solution

The fourth proportional to 25,721.74, 38,572.80 and 9,078.67 is: 13,614.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,721.74 : 38,572.80 = 9,078.67 : x
  2. Step 2: Convert to fraction form
    25,721.74/38,572.80 = 9,078.67/x
  3. Step 3: Cross multiply
    25,721.74x = 38,572.80 × 9,078.67
  4. Step 4: Simplify right side
    25,721.74x = 350,189,722.18
  5. Step 5: Solve for x
    x = 350,189,722.18/25,721.74
  6. Step 6: Final answer
    x = 13,614.54

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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.