Home / 38,872.14-53,646.26-21,878.01

Finding the Fourth Proportional to 38,872.14, 53,646.26 and 21,878.01

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Solution

The fourth proportional to 38,872.14, 53,646.26 and 21,878.01 is: 30,193.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,872.14 : 53,646.26 = 21,878.01 : x
  2. Step 2: Convert to fraction form
    38,872.14/53,646.26 = 21,878.01/x
  3. Step 3: Cross multiply
    38,872.14x = 53,646.26 × 21,878.01
  4. Step 4: Simplify right side
    38,872.14x = 1,173,673,266.26
  5. Step 5: Solve for x
    x = 1,173,673,266.26/38,872.14
  6. Step 6: Final answer
    x = 30,193.18

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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.