Home / 21,017.84-31,531.37-6,227.91

Finding the Fourth Proportional to 21,017.84, 31,531.37 and 6,227.91

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Solution

The fourth proportional to 21,017.84, 31,531.37 and 6,227.91 is: 9,343.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,017.84 : 31,531.37 = 6,227.91 : x
  2. Step 2: Convert to fraction form
    21,017.84/31,531.37 = 6,227.91/x
  3. Step 3: Cross multiply
    21,017.84x = 31,531.37 × 6,227.91
  4. Step 4: Simplify right side
    21,017.84x = 196,374,503.40
  5. Step 5: Solve for x
    x = 196,374,503.40/21,017.84
  6. Step 6: Final answer
    x = 9,343.23

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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.