Home / 21,440.21-32,162.49-7,398.41

Finding the Fourth Proportional to 21,440.21, 32,162.49 and 7,398.41

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Solution

The fourth proportional to 21,440.21, 32,162.49 and 7,398.41 is: 11,098.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,440.21 : 32,162.49 = 7,398.41 : x
  2. Step 2: Convert to fraction form
    21,440.21/32,162.49 = 7,398.41/x
  3. Step 3: Cross multiply
    21,440.21x = 32,162.49 × 7,398.41
  4. Step 4: Simplify right side
    21,440.21x = 237,951,126.83
  5. Step 5: Solve for x
    x = 237,951,126.83/21,440.21
  6. Step 6: Final answer
    x = 11,098.36

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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.