Home / 42,138.32-58,151.08-23,018.36

Finding the Fourth Proportional to 42,138.32, 58,151.08 and 23,018.36

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Solution

The fourth proportional to 42,138.32, 58,151.08 and 23,018.36 is: 31,765.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,138.32 : 58,151.08 = 23,018.36 : x
  2. Step 2: Convert to fraction form
    42,138.32/58,151.08 = 23,018.36/x
  3. Step 3: Cross multiply
    42,138.32x = 58,151.08 × 23,018.36
  4. Step 4: Simplify right side
    42,138.32x = 1,338,542,348.45
  5. Step 5: Solve for x
    x = 1,338,542,348.45/42,138.32
  6. Step 6: Final answer
    x = 31,765.44

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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.