Home / 27,650.64-38,158.78-15,713.28

Finding the Fourth Proportional to 27,650.64, 38,158.78 and 15,713.28

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Solution

The fourth proportional to 27,650.64, 38,158.78 and 15,713.28 is: 21,684.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,650.64 : 38,158.78 = 15,713.28 : x
  2. Step 2: Convert to fraction form
    27,650.64/38,158.78 = 15,713.28/x
  3. Step 3: Cross multiply
    27,650.64x = 38,158.78 × 15,713.28
  4. Step 4: Simplify right side
    27,650.64x = 599,599,594.60
  5. Step 5: Solve for x
    x = 599,599,594.60/27,650.64
  6. Step 6: Final answer
    x = 21,684.84

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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.