Home / 21,165.53-31,748.56-14,589.95

Finding the Fourth Proportional to 21,165.53, 31,748.56 and 14,589.95

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Solution

The fourth proportional to 21,165.53, 31,748.56 and 14,589.95 is: 21,885.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,165.53 : 31,748.56 = 14,589.95 : x
  2. Step 2: Convert to fraction form
    21,165.53/31,748.56 = 14,589.95/x
  3. Step 3: Cross multiply
    21,165.53x = 31,748.56 × 14,589.95
  4. Step 4: Simplify right side
    21,165.53x = 463,209,902.97
  5. Step 5: Solve for x
    x = 463,209,902.97/21,165.53
  6. Step 6: Final answer
    x = 21,885.11

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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.