Home / 21,271.12-32,065.93-19,843.90

Finding the Fourth Proportional to 21,271.12, 32,065.93 and 19,843.90

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Solution

The fourth proportional to 21,271.12, 32,065.93 and 19,843.90 is: 29,914.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,271.12 : 32,065.93 = 19,843.90 : x
  2. Step 2: Convert to fraction form
    21,271.12/32,065.93 = 19,843.90/x
  3. Step 3: Cross multiply
    21,271.12x = 32,065.93 × 19,843.90
  4. Step 4: Simplify right side
    21,271.12x = 636,313,108.33
  5. Step 5: Solve for x
    x = 636,313,108.33/21,271.12
  6. Step 6: Final answer
    x = 29,914.41

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.