Home / 27,824.50-38,400.24-15,251.68

Finding the Fourth Proportional to 27,824.50, 38,400.24 and 15,251.68

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Solution

The fourth proportional to 27,824.50, 38,400.24 and 15,251.68 is: 21,048.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,824.50 : 38,400.24 = 15,251.68 : x
  2. Step 2: Convert to fraction form
    27,824.50/38,400.24 = 15,251.68/x
  3. Step 3: Cross multiply
    27,824.50x = 38,400.24 × 15,251.68
  4. Step 4: Simplify right side
    27,824.50x = 585,668,172.40
  5. Step 5: Solve for x
    x = 585,668,172.40/27,824.50
  6. Step 6: Final answer
    x = 21,048.65

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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.