Home / 40,219.65-55,509.75-22,320.42

Finding the Fourth Proportional to 40,219.65, 55,509.75 and 22,320.42

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Solution

The fourth proportional to 40,219.65, 55,509.75 and 22,320.42 is: 30,805.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,219.65 : 55,509.75 = 22,320.42 : x
  2. Step 2: Convert to fraction form
    40,219.65/55,509.75 = 22,320.42/x
  3. Step 3: Cross multiply
    40,219.65x = 55,509.75 × 22,320.42
  4. Step 4: Simplify right side
    40,219.65x = 1,239,000,934.10
  5. Step 5: Solve for x
    x = 1,239,000,934.10/40,219.65
  6. Step 6: Final answer
    x = 30,805.86

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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.