Home / 27,702.10-38,195.55-19,211.58

Finding the Fourth Proportional to 27,702.10, 38,195.55 and 19,211.58

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Solution

The fourth proportional to 27,702.10, 38,195.55 and 19,211.58 is: 26,488.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,702.10 : 38,195.55 = 19,211.58 : x
  2. Step 2: Convert to fraction form
    27,702.10/38,195.55 = 19,211.58/x
  3. Step 3: Cross multiply
    27,702.10x = 38,195.55 × 19,211.58
  4. Step 4: Simplify right side
    27,702.10x = 733,796,864.47
  5. Step 5: Solve for x
    x = 733,796,864.47/27,702.10
  6. Step 6: Final answer
    x = 26,488.85

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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.