Home / 39,138.03-53,997.69-22,140.63

Finding the Fourth Proportional to 39,138.03, 53,997.69 and 22,140.63

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Solution

The fourth proportional to 39,138.03, 53,997.69 and 22,140.63 is: 30,546.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,138.03 : 53,997.69 = 22,140.63 : x
  2. Step 2: Convert to fraction form
    39,138.03/53,997.69 = 22,140.63/x
  3. Step 3: Cross multiply
    39,138.03x = 53,997.69 × 22,140.63
  4. Step 4: Simplify right side
    39,138.03x = 1,195,542,875.14
  5. Step 5: Solve for x
    x = 1,195,542,875.14/39,138.03
  6. Step 6: Final answer
    x = 30,546.83

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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.