Home / 20,216.85-27,901.31-11,265.81

Finding the Fourth Proportional to 20,216.85, 27,901.31 and 11,265.81

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Solution

The fourth proportional to 20,216.85, 27,901.31 and 11,265.81 is: 15,547.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,216.85 : 27,901.31 = 11,265.81 : x
  2. Step 2: Convert to fraction form
    20,216.85/27,901.31 = 11,265.81/x
  3. Step 3: Cross multiply
    20,216.85x = 27,901.31 × 11,265.81
  4. Step 4: Simplify right side
    20,216.85x = 314,330,800.88
  5. Step 5: Solve for x
    x = 314,330,800.88/20,216.85
  6. Step 6: Final answer
    x = 15,547.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.