Home / 39,800.52-54,924.32-21,895.55

Finding the Fourth Proportional to 39,800.52, 54,924.32 and 21,895.55

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Solution

The fourth proportional to 39,800.52, 54,924.32 and 21,895.55 is: 30,215.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,800.52 : 54,924.32 = 21,895.55 : x
  2. Step 2: Convert to fraction form
    39,800.52/54,924.32 = 21,895.55/x
  3. Step 3: Cross multiply
    39,800.52x = 54,924.32 × 21,895.55
  4. Step 4: Simplify right side
    39,800.52x = 1,202,598,194.78
  5. Step 5: Solve for x
    x = 1,202,598,194.78/39,800.52
  6. Step 6: Final answer
    x = 30,215.64

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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.