Home / 27,719.57-38,239.66-18,155.19

Finding the Fourth Proportional to 27,719.57, 38,239.66 and 18,155.19

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Solution

The fourth proportional to 27,719.57, 38,239.66 and 18,155.19 is: 25,045.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,719.57 : 38,239.66 = 18,155.19 : x
  2. Step 2: Convert to fraction form
    27,719.57/38,239.66 = 18,155.19/x
  3. Step 3: Cross multiply
    27,719.57x = 38,239.66 × 18,155.19
  4. Step 4: Simplify right side
    27,719.57x = 694,248,292.84
  5. Step 5: Solve for x
    x = 694,248,292.84/27,719.57
  6. Step 6: Final answer
    x = 25,045.42

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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.