Home / 20,316.83-30,471.39-7,167.69

Finding the Fourth Proportional to 20,316.83, 30,471.39 and 7,167.69

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Solution

The fourth proportional to 20,316.83, 30,471.39 and 7,167.69 is: 10,750.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,316.83 : 30,471.39 = 7,167.69 : x
  2. Step 2: Convert to fraction form
    20,316.83/30,471.39 = 7,167.69/x
  3. Step 3: Cross multiply
    20,316.83x = 30,471.39 × 7,167.69
  4. Step 4: Simplify right side
    20,316.83x = 218,409,477.39
  5. Step 5: Solve for x
    x = 218,409,477.39/20,316.83
  6. Step 6: Final answer
    x = 10,750.18

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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.