Home / 20,173.62-30,263.66-8,490.18

Finding the Fourth Proportional to 20,173.62, 30,263.66 and 8,490.18

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Solution

The fourth proportional to 20,173.62, 30,263.66 and 8,490.18 is: 12,736.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,173.62 : 30,263.66 = 8,490.18 : x
  2. Step 2: Convert to fraction form
    20,173.62/30,263.66 = 8,490.18/x
  3. Step 3: Cross multiply
    20,173.62x = 30,263.66 × 8,490.18
  4. Step 4: Simplify right side
    20,173.62x = 256,943,920.86
  5. Step 5: Solve for x
    x = 256,943,920.86/20,173.62
  6. Step 6: Final answer
    x = 12,736.63

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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.