Home / 38,619.78-57,888.27-25,287.72

Finding the Fourth Proportional to 38,619.78, 57,888.27 and 25,287.72

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Solution

The fourth proportional to 38,619.78, 57,888.27 and 25,287.72 is: 37,904.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,619.78 : 57,888.27 = 25,287.72 : x
  2. Step 2: Convert to fraction form
    38,619.78/57,888.27 = 25,287.72/x
  3. Step 3: Cross multiply
    38,619.78x = 57,888.27 × 25,287.72
  4. Step 4: Simplify right side
    38,619.78x = 1,463,862,363.04
  5. Step 5: Solve for x
    x = 1,463,862,363.04/38,619.78
  6. Step 6: Final answer
    x = 37,904.47

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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.