Home / 21,196.61-29,251.35-11,636.55

Finding the Fourth Proportional to 21,196.61, 29,251.35 and 11,636.55

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Solution

The fourth proportional to 21,196.61, 29,251.35 and 11,636.55 is: 16,058.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,196.61 : 29,251.35 = 11,636.55 : x
  2. Step 2: Convert to fraction form
    21,196.61/29,251.35 = 11,636.55/x
  3. Step 3: Cross multiply
    21,196.61x = 29,251.35 × 11,636.55
  4. Step 4: Simplify right side
    21,196.61x = 340,384,796.84
  5. Step 5: Solve for x
    x = 340,384,796.84/21,196.61
  6. Step 6: Final answer
    x = 16,058.45

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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.