Home / 38,578.86-57,877.47-12,283.56

Finding the Fourth Proportional to 38,578.86, 57,877.47 and 12,283.56

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Solution

The fourth proportional to 38,578.86, 57,877.47 and 12,283.56 is: 18,428.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,578.86 : 57,877.47 = 12,283.56 : x
  2. Step 2: Convert to fraction form
    38,578.86/57,877.47 = 12,283.56/x
  3. Step 3: Cross multiply
    38,578.86x = 57,877.47 × 12,283.56
  4. Step 4: Simplify right side
    38,578.86x = 710,941,375.39
  5. Step 5: Solve for x
    x = 710,941,375.39/38,578.86
  6. Step 6: Final answer
    x = 18,428.26

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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.