Home / 25,002.86-34,481.57-20,747.12

Finding the Fourth Proportional to 25,002.86, 34,481.57 and 20,747.12

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Solution

The fourth proportional to 25,002.86, 34,481.57 and 20,747.12 is: 28,612.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,002.86 : 34,481.57 = 20,747.12 : x
  2. Step 2: Convert to fraction form
    25,002.86/34,481.57 = 20,747.12/x
  3. Step 3: Cross multiply
    25,002.86x = 34,481.57 × 20,747.12
  4. Step 4: Simplify right side
    25,002.86x = 715,392,994.43
  5. Step 5: Solve for x
    x = 715,392,994.43/25,002.86
  6. Step 6: Final answer
    x = 28,612.45

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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.