Home / 25,869.87-38,798.66-7,149.51

Finding the Fourth Proportional to 25,869.87, 38,798.66 and 7,149.51

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Solution

The fourth proportional to 25,869.87, 38,798.66 and 7,149.51 is: 10,722.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,869.87 : 38,798.66 = 7,149.51 : x
  2. Step 2: Convert to fraction form
    25,869.87/38,798.66 = 7,149.51/x
  3. Step 3: Cross multiply
    25,869.87x = 38,798.66 × 7,149.51
  4. Step 4: Simplify right side
    25,869.87x = 277,391,425.53
  5. Step 5: Solve for x
    x = 277,391,425.53/25,869.87
  6. Step 6: Final answer
    x = 10,722.57

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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.