Home / 27,659.52-38,181.12-18,702.72

Finding the Fourth Proportional to 27,659.52, 38,181.12 and 18,702.72

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Solution

The fourth proportional to 27,659.52, 38,181.12 and 18,702.72 is: 25,817.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,659.52 : 38,181.12 = 18,702.72 : x
  2. Step 2: Convert to fraction form
    27,659.52/38,181.12 = 18,702.72/x
  3. Step 3: Cross multiply
    27,659.52x = 38,181.12 × 18,702.72
  4. Step 4: Simplify right side
    27,659.52x = 714,090,796.65
  5. Step 5: Solve for x
    x = 714,090,796.65/27,659.52
  6. Step 6: Final answer
    x = 25,817.18

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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.