Home / 21,405.08-29,538.34-11,844.39

Finding the Fourth Proportional to 21,405.08, 29,538.34 and 11,844.39

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Solution

The fourth proportional to 21,405.08, 29,538.34 and 11,844.39 is: 16,344.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,405.08 : 29,538.34 = 11,844.39 : x
  2. Step 2: Convert to fraction form
    21,405.08/29,538.34 = 11,844.39/x
  3. Step 3: Cross multiply
    21,405.08x = 29,538.34 × 11,844.39
  4. Step 4: Simplify right side
    21,405.08x = 349,863,618.91
  5. Step 5: Solve for x
    x = 349,863,618.91/21,405.08
  6. Step 6: Final answer
    x = 16,344.89

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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.