Home / 27,855.68-38,448.17-17,254.20

Finding the Fourth Proportional to 27,855.68, 38,448.17 and 17,254.20

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Solution

The fourth proportional to 27,855.68, 38,448.17 and 17,254.20 is: 23,815.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,855.68 : 38,448.17 = 17,254.20 : x
  2. Step 2: Convert to fraction form
    27,855.68/38,448.17 = 17,254.20/x
  3. Step 3: Cross multiply
    27,855.68x = 38,448.17 × 17,254.20
  4. Step 4: Simplify right side
    27,855.68x = 663,392,328.54
  5. Step 5: Solve for x
    x = 663,392,328.54/27,855.68
  6. Step 6: Final answer
    x = 23,815.33

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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.