Home / 21,905.44-32,866.28-15,714.88

Finding the Fourth Proportional to 21,905.44, 32,866.28 and 15,714.88

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Solution

The fourth proportional to 21,905.44, 32,866.28 and 15,714.88 is: 23,578.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,905.44 : 32,866.28 = 15,714.88 : x
  2. Step 2: Convert to fraction form
    21,905.44/32,866.28 = 15,714.88/x
  3. Step 3: Cross multiply
    21,905.44x = 32,866.28 × 15,714.88
  4. Step 4: Simplify right side
    21,905.44x = 516,489,646.25
  5. Step 5: Solve for x
    x = 516,489,646.25/21,905.44
  6. Step 6: Final answer
    x = 23,578.15

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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.