Home / 29,038.74-43,377.87-21,078.06

Finding the Fourth Proportional to 29,038.74, 43,377.87 and 21,078.06

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Solution

The fourth proportional to 29,038.74, 43,377.87 and 21,078.06 is: 31,486.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,038.74 : 43,377.87 = 21,078.06 : x
  2. Step 2: Convert to fraction form
    29,038.74/43,377.87 = 21,078.06/x
  3. Step 3: Cross multiply
    29,038.74x = 43,377.87 × 21,078.06
  4. Step 4: Simplify right side
    29,038.74x = 914,321,346.53
  5. Step 5: Solve for x
    x = 914,321,346.53/29,038.74
  6. Step 6: Final answer
    x = 31,486.26

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.