Home / 40,120.65-55,369.59-22,217.31

Finding the Fourth Proportional to 40,120.65, 55,369.59 and 22,217.31

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Solution

The fourth proportional to 40,120.65, 55,369.59 and 22,217.31 is: 30,661.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,120.65 : 55,369.59 = 22,217.31 : x
  2. Step 2: Convert to fraction form
    40,120.65/55,369.59 = 22,217.31/x
  3. Step 3: Cross multiply
    40,120.65x = 55,369.59 × 22,217.31
  4. Step 4: Simplify right side
    40,120.65x = 1,230,163,345.60
  5. Step 5: Solve for x
    x = 1,230,163,345.60/40,120.65
  6. Step 6: Final answer
    x = 30,661.60

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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.