Home / 27,855.10-38,439.92-15,108.23

Finding the Fourth Proportional to 27,855.10, 38,439.92 and 15,108.23

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Solution

The fourth proportional to 27,855.10, 38,439.92 and 15,108.23 is: 20,849.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,855.10 : 38,439.92 = 15,108.23 : x
  2. Step 2: Convert to fraction form
    27,855.10/38,439.92 = 15,108.23/x
  3. Step 3: Cross multiply
    27,855.10x = 38,439.92 × 15,108.23
  4. Step 4: Simplify right side
    27,855.10x = 580,759,152.54
  5. Step 5: Solve for x
    x = 580,759,152.54/27,855.10
  6. Step 6: Final answer
    x = 20,849.29

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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.