Home / 27,640.30-38,113.50-18,672.24

Finding the Fourth Proportional to 27,640.30, 38,113.50 and 18,672.24

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Solution

The fourth proportional to 27,640.30, 38,113.50 and 18,672.24 is: 25,747.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,640.30 : 38,113.50 = 18,672.24 : x
  2. Step 2: Convert to fraction form
    27,640.30/38,113.50 = 18,672.24/x
  3. Step 3: Cross multiply
    27,640.30x = 38,113.50 × 18,672.24
  4. Step 4: Simplify right side
    27,640.30x = 711,664,419.24
  5. Step 5: Solve for x
    x = 711,664,419.24/27,640.30
  6. Step 6: Final answer
    x = 25,747.35

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Double scale
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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.