Home / 27,758.11-38,305.23-15,825.29

Finding the Fourth Proportional to 27,758.11, 38,305.23 and 15,825.29

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Solution

The fourth proportional to 27,758.11, 38,305.23 and 15,825.29 is: 21,838.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,758.11 : 38,305.23 = 15,825.29 : x
  2. Step 2: Convert to fraction form
    27,758.11/38,305.23 = 15,825.29/x
  3. Step 3: Cross multiply
    27,758.11x = 38,305.23 × 15,825.29
  4. Step 4: Simplify right side
    27,758.11x = 606,191,181.74
  5. Step 5: Solve for x
    x = 606,191,181.74/27,758.11
  6. Step 6: Final answer
    x = 21,838.35

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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.