Home / 21,418.57-32,127.06-5,623.46

Finding the Fourth Proportional to 21,418.57, 32,127.06 and 5,623.46

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Solution

The fourth proportional to 21,418.57, 32,127.06 and 5,623.46 is: 8,434.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,418.57 : 32,127.06 = 5,623.46 : x
  2. Step 2: Convert to fraction form
    21,418.57/32,127.06 = 5,623.46/x
  3. Step 3: Cross multiply
    21,418.57x = 32,127.06 × 5,623.46
  4. Step 4: Simplify right side
    21,418.57x = 180,665,186.12
  5. Step 5: Solve for x
    x = 180,665,186.12/21,418.57
  6. Step 6: Final answer
    x = 8,434.98

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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.