Home / 39,871.56-55,020.63-22,872.30

Finding the Fourth Proportional to 39,871.56, 55,020.63 and 22,872.30

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Solution

The fourth proportional to 39,871.56, 55,020.63 and 22,872.30 is: 31,562.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,871.56 : 55,020.63 = 22,872.30 : x
  2. Step 2: Convert to fraction form
    39,871.56/55,020.63 = 22,872.30/x
  3. Step 3: Cross multiply
    39,871.56x = 55,020.63 × 22,872.30
  4. Step 4: Simplify right side
    39,871.56x = 1,258,448,355.55
  5. Step 5: Solve for x
    x = 1,258,448,355.55/39,871.56
  6. Step 6: Final answer
    x = 31,562.56

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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.