Home / 21,254.44-29,352.90-15,940.84

Finding the Fourth Proportional to 21,254.44, 29,352.90 and 15,940.84

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Solution

The fourth proportional to 21,254.44, 29,352.90 and 15,940.84 is: 22,014.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,254.44 : 29,352.90 = 15,940.84 : x
  2. Step 2: Convert to fraction form
    21,254.44/29,352.90 = 15,940.84/x
  3. Step 3: Cross multiply
    21,254.44x = 29,352.90 × 15,940.84
  4. Step 4: Simplify right side
    21,254.44x = 467,909,882.44
  5. Step 5: Solve for x
    x = 467,909,882.44/21,254.44
  6. Step 6: Final answer
    x = 22,014.69

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1.5x scale

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.