Home / 20,606.67-30,925.53-8,129.97

Finding the Fourth Proportional to 20,606.67, 30,925.53 and 8,129.97

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Solution

The fourth proportional to 20,606.67, 30,925.53 and 8,129.97 is: 12,201.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,606.67 : 30,925.53 = 8,129.97 : x
  2. Step 2: Convert to fraction form
    20,606.67/30,925.53 = 8,129.97/x
  3. Step 3: Cross multiply
    20,606.67x = 30,925.53 × 8,129.97
  4. Step 4: Simplify right side
    20,606.67x = 251,423,631.13
  5. Step 5: Solve for x
    x = 251,423,631.13/20,606.67
  6. Step 6: Final answer
    x = 12,201.08

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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.