Home / 20,217.16-30,325.75-9,110.87

Finding the Fourth Proportional to 20,217.16, 30,325.75 and 9,110.87

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Solution

The fourth proportional to 20,217.16, 30,325.75 and 9,110.87 is: 13,666.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,217.16 : 30,325.75 = 9,110.87 : x
  2. Step 2: Convert to fraction form
    20,217.16/30,325.75 = 9,110.87/x
  3. Step 3: Cross multiply
    20,217.16x = 30,325.75 × 9,110.87
  4. Step 4: Simplify right side
    20,217.16x = 276,293,926.63
  5. Step 5: Solve for x
    x = 276,293,926.63/20,217.16
  6. Step 6: Final answer
    x = 13,666.31

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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.