Home / 39,730.62-54,825.55-21,826.38

Finding the Fourth Proportional to 39,730.62, 54,825.55 and 21,826.38

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Solution

The fourth proportional to 39,730.62, 54,825.55 and 21,826.38 is: 30,118.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,730.62 : 54,825.55 = 21,826.38 : x
  2. Step 2: Convert to fraction form
    39,730.62/54,825.55 = 21,826.38/x
  3. Step 3: Cross multiply
    39,730.62x = 54,825.55 × 21,826.38
  4. Step 4: Simplify right side
    39,730.62x = 1,196,643,233.44
  5. Step 5: Solve for x
    x = 1,196,643,233.44/39,730.62
  6. Step 6: Final answer
    x = 30,118.92

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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.