Home / 21,118.22-31,677.33-5,535.84

Finding the Fourth Proportional to 21,118.22, 31,677.33 and 5,535.84

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Solution

The fourth proportional to 21,118.22, 31,677.33 and 5,535.84 is: 8,303.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,118.22 : 31,677.33 = 5,535.84 : x
  2. Step 2: Convert to fraction form
    21,118.22/31,677.33 = 5,535.84/x
  3. Step 3: Cross multiply
    21,118.22x = 31,677.33 × 5,535.84
  4. Step 4: Simplify right side
    21,118.22x = 175,360,738.92
  5. Step 5: Solve for x
    x = 175,360,738.92/21,118.22
  6. Step 6: Final answer
    x = 8,303.77

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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.