Home / 25,213.24-34,793.78-15,787

Finding the Fourth Proportional to 25,213.24, 34,793.78 and 15,787

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Solution

The fourth proportional to 25,213.24, 34,793.78 and 15,787 is: 21,785.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,213.24 : 34,793.78 = 15,787 : x
  2. Step 2: Convert to fraction form
    25,213.24/34,793.78 = 15,787/x
  3. Step 3: Cross multiply
    25,213.24x = 34,793.78 × 15,787
  4. Step 4: Simplify right side
    25,213.24x = 549,289,404.86
  5. Step 5: Solve for x
    x = 549,289,404.86/25,213.24
  6. Step 6: Final answer
    x = 21,785.75

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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.