Home / 16,531.48-24,782.64-12,288.70

Finding the Fourth Proportional to 16,531.48, 24,782.64 and 12,288.70

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Solution

The fourth proportional to 16,531.48, 24,782.64 and 12,288.70 is: 18,422.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,531.48 : 24,782.64 = 12,288.70 : x
  2. Step 2: Convert to fraction form
    16,531.48/24,782.64 = 12,288.70/x
  3. Step 3: Cross multiply
    16,531.48x = 24,782.64 × 12,288.70
  4. Step 4: Simplify right side
    16,531.48x = 304,546,428.17
  5. Step 5: Solve for x
    x = 304,546,428.17/16,531.48
  6. Step 6: Final answer
    x = 18,422.21

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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.