Home / 20,794.16-31,192.36-8,316.08

Finding the Fourth Proportional to 20,794.16, 31,192.36 and 8,316.08

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Solution

The fourth proportional to 20,794.16, 31,192.36 and 8,316.08 is: 12,474.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,794.16 : 31,192.36 = 8,316.08 : x
  2. Step 2: Convert to fraction form
    20,794.16/31,192.36 = 8,316.08/x
  3. Step 3: Cross multiply
    20,794.16x = 31,192.36 × 8,316.08
  4. Step 4: Simplify right side
    20,794.16x = 259,398,161.15
  5. Step 5: Solve for x
    x = 259,398,161.15/20,794.16
  6. Step 6: Final answer
    x = 12,474.57

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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.