Home / 21,958.24-32,918.90-17,787.91

Finding the Fourth Proportional to 21,958.24, 32,918.90 and 17,787.91

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Solution

The fourth proportional to 21,958.24, 32,918.90 and 17,787.91 is: 26,666.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,958.24 : 32,918.90 = 17,787.91 : x
  2. Step 2: Convert to fraction form
    21,958.24/32,918.90 = 17,787.91/x
  3. Step 3: Cross multiply
    21,958.24x = 32,918.90 × 17,787.91
  4. Step 4: Simplify right side
    21,958.24x = 585,558,259.26
  5. Step 5: Solve for x
    x = 585,558,259.26/21,958.24
  6. Step 6: Final answer
    x = 26,666.91

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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.