Home / 38,276.78-57,390.49-18,275.45

Finding the Fourth Proportional to 38,276.78, 57,390.49 and 18,275.45

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Solution

The fourth proportional to 38,276.78, 57,390.49 and 18,275.45 is: 27,401.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,276.78 : 57,390.49 = 18,275.45 : x
  2. Step 2: Convert to fraction form
    38,276.78/57,390.49 = 18,275.45/x
  3. Step 3: Cross multiply
    38,276.78x = 57,390.49 × 18,275.45
  4. Step 4: Simplify right side
    38,276.78x = 1,048,837,030.47
  5. Step 5: Solve for x
    x = 1,048,837,030.47/38,276.78
  6. Step 6: Final answer
    x = 27,401.39

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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.