Home / 27,827.10-38,401.31-15,080.65

Finding the Fourth Proportional to 27,827.10, 38,401.31 and 15,080.65

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Solution

The fourth proportional to 27,827.10, 38,401.31 and 15,080.65 is: 20,811.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,827.10 : 38,401.31 = 15,080.65 : x
  2. Step 2: Convert to fraction form
    27,827.10/38,401.31 = 15,080.65/x
  3. Step 3: Cross multiply
    27,827.10x = 38,401.31 × 15,080.65
  4. Step 4: Simplify right side
    27,827.10x = 579,116,657.35
  5. Step 5: Solve for x
    x = 579,116,657.35/27,827.10
  6. Step 6: Final answer
    x = 20,811.25

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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.