Home / 20,191.40-30,268.47-10,837.97

Finding the Fourth Proportional to 20,191.40, 30,268.47 and 10,837.97

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Solution

The fourth proportional to 20,191.40, 30,268.47 and 10,837.97 is: 16,246.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,191.40 : 30,268.47 = 10,837.97 : x
  2. Step 2: Convert to fraction form
    20,191.40/30,268.47 = 10,837.97/x
  3. Step 3: Cross multiply
    20,191.40x = 30,268.47 × 10,837.97
  4. Step 4: Simplify right side
    20,191.40x = 328,048,769.81
  5. Step 5: Solve for x
    x = 328,048,769.81/20,191.40
  6. Step 6: Final answer
    x = 16,246.96

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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.