Home / 39,807.03-54,932.57-21,902.05

Finding the Fourth Proportional to 39,807.03, 54,932.57 and 21,902.05

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Solution

The fourth proportional to 39,807.03, 54,932.57 and 21,902.05 is: 30,224.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,807.03 : 54,932.57 = 21,902.05 : x
  2. Step 2: Convert to fraction form
    39,807.03/54,932.57 = 21,902.05/x
  3. Step 3: Cross multiply
    39,807.03x = 54,932.57 × 21,902.05
  4. Step 4: Simplify right side
    39,807.03x = 1,203,135,730.06
  5. Step 5: Solve for x
    x = 1,203,135,730.06/39,807.03
  6. Step 6: Final answer
    x = 30,224.20

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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.