Home / 40,220.65-55,511.13-22,321.42

Finding the Fourth Proportional to 40,220.65, 55,511.13 and 22,321.42

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Solution

The fourth proportional to 40,220.65, 55,511.13 and 22,321.42 is: 30,807.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,220.65 : 55,511.13 = 22,321.42 : x
  2. Step 2: Convert to fraction form
    40,220.65/55,511.13 = 22,321.42/x
  3. Step 3: Cross multiply
    40,220.65x = 55,511.13 × 22,321.42
  4. Step 4: Simplify right side
    40,220.65x = 1,239,087,247.40
  5. Step 5: Solve for x
    x = 1,239,087,247.40/40,220.65
  6. Step 6: Final answer
    x = 30,807.24

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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.