Home / 38,101.78-57,155.41-13,141.47

Finding the Fourth Proportional to 38,101.78, 57,155.41 and 13,141.47

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Solution

The fourth proportional to 38,101.78, 57,155.41 and 13,141.47 is: 19,713.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,101.78 : 57,155.41 = 13,141.47 : x
  2. Step 2: Convert to fraction form
    38,101.78/57,155.41 = 13,141.47/x
  3. Step 3: Cross multiply
    38,101.78x = 57,155.41 × 13,141.47
  4. Step 4: Simplify right side
    38,101.78x = 751,106,058.31
  5. Step 5: Solve for x
    x = 751,106,058.31/38,101.78
  6. Step 6: Final answer
    x = 19,713.15

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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.