Home / 27,850.92-38,434.32-15,275.76

Finding the Fourth Proportional to 27,850.92, 38,434.32 and 15,275.76

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Solution

The fourth proportional to 27,850.92, 38,434.32 and 15,275.76 is: 21,080.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,850.92 : 38,434.32 = 15,275.76 : x
  2. Step 2: Convert to fraction form
    27,850.92/38,434.32 = 15,275.76/x
  3. Step 3: Cross multiply
    27,850.92x = 38,434.32 × 15,275.76
  4. Step 4: Simplify right side
    27,850.92x = 587,113,448.08
  5. Step 5: Solve for x
    x = 587,113,448.08/27,850.92
  6. Step 6: Final answer
    x = 21,080.58

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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.