Home / 22,390.80-33,586.20-21,406.65

Finding the Fourth Proportional to 22,390.80, 33,586.20 and 21,406.65

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Solution

The fourth proportional to 22,390.80, 33,586.20 and 21,406.65 is: 32,109.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,390.80 : 33,586.20 = 21,406.65 : x
  2. Step 2: Convert to fraction form
    22,390.80/33,586.20 = 21,406.65/x
  3. Step 3: Cross multiply
    22,390.80x = 33,586.20 × 21,406.65
  4. Step 4: Simplify right side
    22,390.80x = 718,968,028.23
  5. Step 5: Solve for x
    x = 718,968,028.23/22,390.80
  6. Step 6: Final answer
    x = 32,109.98

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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.