Home / 21,392.39-29,511.69-13,841.19

Finding the Fourth Proportional to 21,392.39, 29,511.69 and 13,841.19

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Solution

The fourth proportional to 21,392.39, 29,511.69 and 13,841.19 is: 19,094.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,392.39 : 29,511.69 = 13,841.19 : x
  2. Step 2: Convert to fraction form
    21,392.39/29,511.69 = 13,841.19/x
  3. Step 3: Cross multiply
    21,392.39x = 29,511.69 × 13,841.19
  4. Step 4: Simplify right side
    21,392.39x = 408,476,701.62
  5. Step 5: Solve for x
    x = 408,476,701.62/21,392.39
  6. Step 6: Final answer
    x = 19,094.49

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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.