Home / 39,435.54-54,422.27-21,531.71

Finding the Fourth Proportional to 39,435.54, 54,422.27 and 21,531.71

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Solution

The fourth proportional to 39,435.54, 54,422.27 and 21,531.71 is: 29,714.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,435.54 : 54,422.27 = 21,531.71 : x
  2. Step 2: Convert to fraction form
    39,435.54/54,422.27 = 21,531.71/x
  3. Step 3: Cross multiply
    39,435.54x = 54,422.27 × 21,531.71
  4. Step 4: Simplify right side
    39,435.54x = 1,171,804,155.41
  5. Step 5: Solve for x
    x = 1,171,804,155.41/39,435.54
  6. Step 6: Final answer
    x = 29,714.42

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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.