Home / 27,630.10-38,129.53-15,054.85

Finding the Fourth Proportional to 27,630.10, 38,129.53 and 15,054.85

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Solution

The fourth proportional to 27,630.10, 38,129.53 and 15,054.85 is: 20,775.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,630.10 : 38,129.53 = 15,054.85 : x
  2. Step 2: Convert to fraction form
    27,630.10/38,129.53 = 15,054.85/x
  3. Step 3: Cross multiply
    27,630.10x = 38,129.53 × 15,054.85
  4. Step 4: Simplify right side
    27,630.10x = 574,034,354.72
  5. Step 5: Solve for x
    x = 574,034,354.72/27,630.10
  6. Step 6: Final answer
    x = 20,775.69

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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.