Home / 27,590.25-38,074.68-15,015

Finding the Fourth Proportional to 27,590.25, 38,074.68 and 15,015

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Solution

The fourth proportional to 27,590.25, 38,074.68 and 15,015 is: 20,720.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,590.25 : 38,074.68 = 15,015 : x
  2. Step 2: Convert to fraction form
    27,590.25/38,074.68 = 15,015/x
  3. Step 3: Cross multiply
    27,590.25x = 38,074.68 × 15,015
  4. Step 4: Simplify right side
    27,590.25x = 571,691,320.20
  5. Step 5: Solve for x
    x = 571,691,320.20/27,590.25
  6. Step 6: Final answer
    x = 20,720.77

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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.