Home / 21,719.30-32,584.57-12,721.01

Finding the Fourth Proportional to 21,719.30, 32,584.57 and 12,721.01

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Solution

The fourth proportional to 21,719.30, 32,584.57 and 12,721.01 is: 19,084.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,719.30 : 32,584.57 = 12,721.01 : x
  2. Step 2: Convert to fraction form
    21,719.30/32,584.57 = 12,721.01/x
  3. Step 3: Cross multiply
    21,719.30x = 32,584.57 × 12,721.01
  4. Step 4: Simplify right side
    21,719.30x = 414,508,446.09
  5. Step 5: Solve for x
    x = 414,508,446.09/21,719.30
  6. Step 6: Final answer
    x = 19,084.80

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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.