Home / 21,837.44-30,135.60-11,901.44

Finding the Fourth Proportional to 21,837.44, 30,135.60 and 11,901.44

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Solution

The fourth proportional to 21,837.44, 30,135.60 and 11,901.44 is: 16,423.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,837.44 : 30,135.60 = 11,901.44 : x
  2. Step 2: Convert to fraction form
    21,837.44/30,135.60 = 11,901.44/x
  3. Step 3: Cross multiply
    21,837.44x = 30,135.60 × 11,901.44
  4. Step 4: Simplify right side
    21,837.44x = 358,657,035.26
  5. Step 5: Solve for x
    x = 358,657,035.26/21,837.44
  6. Step 6: Final answer
    x = 16,423.95

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1.5x scale

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.