Home / 21,987.58-32,946.78-17,002.12

Finding the Fourth Proportional to 21,987.58, 32,946.78 and 17,002.12

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Solution

The fourth proportional to 21,987.58, 32,946.78 and 17,002.12 is: 25,476.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,987.58 : 32,946.78 = 17,002.12 : x
  2. Step 2: Convert to fraction form
    21,987.58/32,946.78 = 17,002.12/x
  3. Step 3: Cross multiply
    21,987.58x = 32,946.78 × 17,002.12
  4. Step 4: Simplify right side
    21,987.58x = 560,165,107.17
  5. Step 5: Solve for x
    x = 560,165,107.17/21,987.58
  6. Step 6: Final answer
    x = 25,476.43

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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.