Home / 20,235.27-30,345.61-8,549.40

Finding the Fourth Proportional to 20,235.27, 30,345.61 and 8,549.40

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Solution

The fourth proportional to 20,235.27, 30,345.61 and 8,549.40 is: 12,821.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,235.27 : 30,345.61 = 8,549.40 : x
  2. Step 2: Convert to fraction form
    20,235.27/30,345.61 = 8,549.40/x
  3. Step 3: Cross multiply
    20,235.27x = 30,345.61 × 8,549.40
  4. Step 4: Simplify right side
    20,235.27x = 259,436,585.03
  5. Step 5: Solve for x
    x = 259,436,585.03/20,235.27
  6. Step 6: Final answer
    x = 12,821.01

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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.