Home / 39,627.10-54,685.05-21,722.05

Finding the Fourth Proportional to 39,627.10, 54,685.05 and 21,722.05

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Solution

The fourth proportional to 39,627.10, 54,685.05 and 21,722.05 is: 29,976.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,627.10 : 54,685.05 = 21,722.05 : x
  2. Step 2: Convert to fraction form
    39,627.10/54,685.05 = 21,722.05/x
  3. Step 3: Cross multiply
    39,627.10x = 54,685.05 × 21,722.05
  4. Step 4: Simplify right side
    39,627.10x = 1,187,871,390.35
  5. Step 5: Solve for x
    x = 1,187,871,390.35/39,627.10
  6. Step 6: Final answer
    x = 29,976.24

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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.