Home / 29,186.12-40,286.36-21,630.04

Finding the Fourth Proportional to 29,186.12, 40,286.36 and 21,630.04

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Solution

The fourth proportional to 29,186.12, 40,286.36 and 21,630.04 is: 29,856.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,186.12 : 40,286.36 = 21,630.04 : x
  2. Step 2: Convert to fraction form
    29,186.12/40,286.36 = 21,630.04/x
  3. Step 3: Cross multiply
    29,186.12x = 40,286.36 × 21,630.04
  4. Step 4: Simplify right side
    29,186.12x = 871,395,531.61
  5. Step 5: Solve for x
    x = 871,395,531.61/29,186.12
  6. Step 6: Final answer
    x = 29,856.50

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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.