Home / 20,318.56-30,482.48-8,632.16

Finding the Fourth Proportional to 20,318.56, 30,482.48 and 8,632.16

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Solution

The fourth proportional to 20,318.56, 30,482.48 and 8,632.16 is: 12,950.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,318.56 : 30,482.48 = 8,632.16 : x
  2. Step 2: Convert to fraction form
    20,318.56/30,482.48 = 8,632.16/x
  3. Step 3: Cross multiply
    20,318.56x = 30,482.48 × 8,632.16
  4. Step 4: Simplify right side
    20,318.56x = 263,129,644.56
  5. Step 5: Solve for x
    x = 263,129,644.56/20,318.56
  6. Step 6: Final answer
    x = 12,950.21

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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.