Home / 39,138.82-58,708.22-18,362.32

Finding the Fourth Proportional to 39,138.82, 58,708.22 and 18,362.32

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Solution

The fourth proportional to 39,138.82, 58,708.22 and 18,362.32 is: 27,543.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,138.82 : 58,708.22 = 18,362.32 : x
  2. Step 2: Convert to fraction form
    39,138.82/58,708.22 = 18,362.32/x
  3. Step 3: Cross multiply
    39,138.82x = 58,708.22 × 18,362.32
  4. Step 4: Simplify right side
    39,138.82x = 1,078,019,122.27
  5. Step 5: Solve for x
    x = 1,078,019,122.27/39,138.82
  6. Step 6: Final answer
    x = 27,543.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.