Home / 40,219.74-55,509.90-22,320.49

Finding the Fourth Proportional to 40,219.74, 55,509.90 and 22,320.49

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Solution

The fourth proportional to 40,219.74, 55,509.90 and 22,320.49 is: 30,805.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,219.74 : 55,509.90 = 22,320.49 : x
  2. Step 2: Convert to fraction form
    40,219.74/55,509.90 = 22,320.49/x
  3. Step 3: Cross multiply
    40,219.74x = 55,509.90 × 22,320.49
  4. Step 4: Simplify right side
    40,219.74x = 1,239,008,167.85
  5. Step 5: Solve for x
    x = 1,239,008,167.85/40,219.74
  6. Step 6: Final answer
    x = 30,805.97

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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.