Home / 40,099.65-55,336.01-21,950.79

Finding the Fourth Proportional to 40,099.65, 55,336.01 and 21,950.79

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Solution

The fourth proportional to 40,099.65, 55,336.01 and 21,950.79 is: 30,291.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,099.65 : 55,336.01 = 21,950.79 : x
  2. Step 2: Convert to fraction form
    40,099.65/55,336.01 = 21,950.79/x
  3. Step 3: Cross multiply
    40,099.65x = 55,336.01 × 21,950.79
  4. Step 4: Simplify right side
    40,099.65x = 1,214,669,025.19
  5. Step 5: Solve for x
    x = 1,214,669,025.19/40,099.65
  6. Step 6: Final answer
    x = 30,291.26

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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.