Home / 21,607.17-29,817.81-12,175.89

Finding the Fourth Proportional to 21,607.17, 29,817.81 and 12,175.89

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Solution

The fourth proportional to 21,607.17, 29,817.81 and 12,175.89 is: 16,802.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,607.17 : 29,817.81 = 12,175.89 : x
  2. Step 2: Convert to fraction form
    21,607.17/29,817.81 = 12,175.89/x
  3. Step 3: Cross multiply
    21,607.17x = 29,817.81 × 12,175.89
  4. Step 4: Simplify right side
    21,607.17x = 363,058,374.60
  5. Step 5: Solve for x
    x = 363,058,374.60/21,607.17
  6. Step 6: Final answer
    x = 16,802.68

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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.