Home / 20,165.61-30,251.67-8,482.17

Finding the Fourth Proportional to 20,165.61, 30,251.67 and 8,482.17

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Solution

The fourth proportional to 20,165.61, 30,251.67 and 8,482.17 is: 12,724.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,165.61 : 30,251.67 = 8,482.17 : x
  2. Step 2: Convert to fraction form
    20,165.61/30,251.67 = 8,482.17/x
  3. Step 3: Cross multiply
    20,165.61x = 30,251.67 × 8,482.17
  4. Step 4: Simplify right side
    20,165.61x = 256,599,807.72
  5. Step 5: Solve for x
    x = 256,599,807.72/20,165.61
  6. Step 6: Final answer
    x = 12,724.62

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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.