Home / 16,942.80-25,430.40-8,632.20

Finding the Fourth Proportional to 16,942.80, 25,430.40 and 8,632.20

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Solution

The fourth proportional to 16,942.80, 25,430.40 and 8,632.20 is: 12,956.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,942.80 : 25,430.40 = 8,632.20 : x
  2. Step 2: Convert to fraction form
    16,942.80/25,430.40 = 8,632.20/x
  3. Step 3: Cross multiply
    16,942.80x = 25,430.40 × 8,632.20
  4. Step 4: Simplify right side
    16,942.80x = 219,520,298.88
  5. Step 5: Solve for x
    x = 219,520,298.88/16,942.80
  6. Step 6: Final answer
    x = 12,956.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.