Home / 40,340.72-55,669.22-21,943.36

Finding the Fourth Proportional to 40,340.72, 55,669.22 and 21,943.36

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Solution

The fourth proportional to 40,340.72, 55,669.22 and 21,943.36 is: 30,281.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,340.72 : 55,669.22 = 21,943.36 : x
  2. Step 2: Convert to fraction form
    40,340.72/55,669.22 = 21,943.36/x
  3. Step 3: Cross multiply
    40,340.72x = 55,669.22 × 21,943.36
  4. Step 4: Simplify right side
    40,340.72x = 1,221,569,735.38
  5. Step 5: Solve for x
    x = 1,221,569,735.38/40,340.72
  6. Step 6: Final answer
    x = 30,281.31

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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.