Home / 27,319.89-37,702.38-15,990.44

Finding the Fourth Proportional to 27,319.89, 37,702.38 and 15,990.44

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Solution

The fourth proportional to 27,319.89, 37,702.38 and 15,990.44 is: 22,067.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,319.89 : 37,702.38 = 15,990.44 : x
  2. Step 2: Convert to fraction form
    27,319.89/37,702.38 = 15,990.44/x
  3. Step 3: Cross multiply
    27,319.89x = 37,702.38 × 15,990.44
  4. Step 4: Simplify right side
    27,319.89x = 602,877,645.25
  5. Step 5: Solve for x
    x = 602,877,645.25/27,319.89
  6. Step 6: Final answer
    x = 22,067.35

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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.