Home / 27,755.16-38,303.03-15,179.91

Finding the Fourth Proportional to 27,755.16, 38,303.03 and 15,179.91

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Solution

The fourth proportional to 27,755.16, 38,303.03 and 15,179.91 is: 20,948.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,755.16 : 38,303.03 = 15,179.91 : x
  2. Step 2: Convert to fraction form
    27,755.16/38,303.03 = 15,179.91/x
  3. Step 3: Cross multiply
    27,755.16x = 38,303.03 × 15,179.91
  4. Step 4: Simplify right side
    27,755.16x = 581,436,357.05
  5. Step 5: Solve for x
    x = 581,436,357.05/27,755.16
  6. Step 6: Final answer
    x = 20,948.77

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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.