Home / 27,815.30-38,375.34-19,315.16

Finding the Fourth Proportional to 27,815.30, 38,375.34 and 19,315.16

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Solution

The fourth proportional to 27,815.30, 38,375.34 and 19,315.16 is: 26,648.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,815.30 : 38,375.34 = 19,315.16 : x
  2. Step 2: Convert to fraction form
    27,815.30/38,375.34 = 19,315.16/x
  3. Step 3: Cross multiply
    27,815.30x = 38,375.34 × 19,315.16
  4. Step 4: Simplify right side
    27,815.30x = 741,225,832.15
  5. Step 5: Solve for x
    x = 741,225,832.15/27,815.30
  6. Step 6: Final answer
    x = 26,648.13

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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.