Home / 39,138.48-54,018.60-23,231.76

Finding the Fourth Proportional to 39,138.48, 54,018.60 and 23,231.76

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Solution

The fourth proportional to 39,138.48, 54,018.60 and 23,231.76 is: 32,064.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,138.48 : 54,018.60 = 23,231.76 : x
  2. Step 2: Convert to fraction form
    39,138.48/54,018.60 = 23,231.76/x
  3. Step 3: Cross multiply
    39,138.48x = 54,018.60 × 23,231.76
  4. Step 4: Simplify right side
    39,138.48x = 1,254,947,150.74
  5. Step 5: Solve for x
    x = 1,254,947,150.74/39,138.48
  6. Step 6: Final answer
    x = 32,064.28

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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.