Home / 16,371.24-22,617-13,221.96

Finding the Fourth Proportional to 16,371.24, 22,617 and 13,221.96

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Solution

The fourth proportional to 16,371.24, 22,617 and 13,221.96 is: 18,266.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,371.24 : 22,617 = 13,221.96 : x
  2. Step 2: Convert to fraction form
    16,371.24/22,617 = 13,221.96/x
  3. Step 3: Cross multiply
    16,371.24x = 22,617 × 13,221.96
  4. Step 4: Simplify right side
    16,371.24x = 299,041,069.32
  5. Step 5: Solve for x
    x = 299,041,069.32/16,371.24
  6. Step 6: Final answer
    x = 18,266.24

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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.