Home / 20,826.84-31,226.37-11,471.24

Finding the Fourth Proportional to 20,826.84, 31,226.37 and 11,471.24

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Solution

The fourth proportional to 20,826.84, 31,226.37 and 11,471.24 is: 17,199.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,826.84 : 31,226.37 = 11,471.24 : x
  2. Step 2: Convert to fraction form
    20,826.84/31,226.37 = 11,471.24/x
  3. Step 3: Cross multiply
    20,826.84x = 31,226.37 × 11,471.24
  4. Step 4: Simplify right side
    20,826.84x = 358,205,028.47
  5. Step 5: Solve for x
    x = 358,205,028.47/20,826.84
  6. Step 6: Final answer
    x = 17,199.20

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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.