Home / 27,938.74-38,535.94-18,375.63

Finding the Fourth Proportional to 27,938.74, 38,535.94 and 18,375.63

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Solution

The fourth proportional to 27,938.74, 38,535.94 and 18,375.63 is: 25,345.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,938.74 : 38,535.94 = 18,375.63 : x
  2. Step 2: Convert to fraction form
    27,938.74/38,535.94 = 18,375.63/x
  3. Step 3: Cross multiply
    27,938.74x = 38,535.94 × 18,375.63
  4. Step 4: Simplify right side
    27,938.74x = 708,122,083.26
  5. Step 5: Solve for x
    x = 708,122,083.26/27,938.74
  6. Step 6: Final answer
    x = 25,345.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.