Home / 21,132.96-29,164.39-11,701.52

Finding the Fourth Proportional to 21,132.96, 29,164.39 and 11,701.52

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Solution

The fourth proportional to 21,132.96, 29,164.39 and 11,701.52 is: 16,148.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,132.96 : 29,164.39 = 11,701.52 : x
  2. Step 2: Convert to fraction form
    21,132.96/29,164.39 = 11,701.52/x
  3. Step 3: Cross multiply
    21,132.96x = 29,164.39 × 11,701.52
  4. Step 4: Simplify right side
    21,132.96x = 341,267,692.87
  5. Step 5: Solve for x
    x = 341,267,692.87/21,132.96
  6. Step 6: Final answer
    x = 16,148.60

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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.