Home / 27,215.40-40,823.10-15,529.80

Finding the Fourth Proportional to 27,215.40, 40,823.10 and 15,529.80

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Solution

The fourth proportional to 27,215.40, 40,823.10 and 15,529.80 is: 23,294.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,215.40 : 40,823.10 = 15,529.80 : x
  2. Step 2: Convert to fraction form
    27,215.40/40,823.10 = 15,529.80/x
  3. Step 3: Cross multiply
    27,215.40x = 40,823.10 × 15,529.80
  4. Step 4: Simplify right side
    27,215.40x = 633,974,578.38
  5. Step 5: Solve for x
    x = 633,974,578.38/27,215.40
  6. Step 6: Final answer
    x = 23,294.70

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.