Home / 20,040.55-27,631.73-16,216.20

Finding the Fourth Proportional to 20,040.55, 27,631.73 and 16,216.20

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Solution

The fourth proportional to 20,040.55, 27,631.73 and 16,216.20 is: 22,358.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,040.55 : 27,631.73 = 16,216.20 : x
  2. Step 2: Convert to fraction form
    20,040.55/27,631.73 = 16,216.20/x
  3. Step 3: Cross multiply
    20,040.55x = 27,631.73 × 16,216.20
  4. Step 4: Simplify right side
    20,040.55x = 448,081,700.57
  5. Step 5: Solve for x
    x = 448,081,700.57/20,040.55
  6. Step 6: Final answer
    x = 22,358.76

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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.