Home / 38,400.25-57,578.67-15,898.20

Finding the Fourth Proportional to 38,400.25, 57,578.67 and 15,898.20

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Solution

The fourth proportional to 38,400.25, 57,578.67 and 15,898.20 is: 23,838.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,400.25 : 57,578.67 = 15,898.20 : x
  2. Step 2: Convert to fraction form
    38,400.25/57,578.67 = 15,898.20/x
  3. Step 3: Cross multiply
    38,400.25x = 57,578.67 × 15,898.20
  4. Step 4: Simplify right side
    38,400.25x = 915,397,211.39
  5. Step 5: Solve for x
    x = 915,397,211.39/38,400.25
  6. Step 6: Final answer
    x = 23,838.32

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1.5x scale

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.