Home / 27,255.87-37,612.11-15,319.86

Finding the Fourth Proportional to 27,255.87, 37,612.11 and 15,319.86

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Solution

The fourth proportional to 27,255.87, 37,612.11 and 15,319.86 is: 21,140.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,255.87 : 37,612.11 = 15,319.86 : x
  2. Step 2: Convert to fraction form
    27,255.87/37,612.11 = 15,319.86/x
  3. Step 3: Cross multiply
    27,255.87x = 37,612.11 × 15,319.86
  4. Step 4: Simplify right side
    27,255.87x = 576,212,259.50
  5. Step 5: Solve for x
    x = 576,212,259.50/27,255.87
  6. Step 6: Final answer
    x = 21,140.85

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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.