Home / 27,586.26-38,084.55-21,113.70

Finding the Fourth Proportional to 27,586.26, 38,084.55 and 21,113.70

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Solution

The fourth proportional to 27,586.26, 38,084.55 and 21,113.70 is: 29,148.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,586.26 : 38,084.55 = 21,113.70 : x
  2. Step 2: Convert to fraction form
    27,586.26/38,084.55 = 21,113.70/x
  3. Step 3: Cross multiply
    27,586.26x = 38,084.55 × 21,113.70
  4. Step 4: Simplify right side
    27,586.26x = 804,105,763.34
  5. Step 5: Solve for x
    x = 804,105,763.34/27,586.26
  6. Step 6: Final answer
    x = 29,148.78

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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.