Home / 27,949.71-38,559.20-15,847.64

Finding the Fourth Proportional to 27,949.71, 38,559.20 and 15,847.64

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Solution

The fourth proportional to 27,949.71, 38,559.20 and 15,847.64 is: 21,863.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,949.71 : 38,559.20 = 15,847.64 : x
  2. Step 2: Convert to fraction form
    27,949.71/38,559.20 = 15,847.64/x
  3. Step 3: Cross multiply
    27,949.71x = 38,559.20 × 15,847.64
  4. Step 4: Simplify right side
    27,949.71x = 611,072,320.29
  5. Step 5: Solve for x
    x = 611,072,320.29/27,949.71
  6. Step 6: Final answer
    x = 21,863.28

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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.