Home / 29,712.06-40,960.20-21,199.64

Finding the Fourth Proportional to 29,712.06, 40,960.20 and 21,199.64

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Solution

The fourth proportional to 29,712.06, 40,960.20 and 21,199.64 is: 29,225.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,712.06 : 40,960.20 = 21,199.64 : x
  2. Step 2: Convert to fraction form
    29,712.06/40,960.20 = 21,199.64/x
  3. Step 3: Cross multiply
    29,712.06x = 40,960.20 × 21,199.64
  4. Step 4: Simplify right side
    29,712.06x = 868,341,494.33
  5. Step 5: Solve for x
    x = 868,341,494.33/29,712.06
  6. Step 6: Final answer
    x = 29,225.22

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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.