Home / 29,169.76-40,232.78-21,999.98

Finding the Fourth Proportional to 29,169.76, 40,232.78 and 21,999.98

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Solution

The fourth proportional to 29,169.76, 40,232.78 and 21,999.98 is: 30,343.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,169.76 : 40,232.78 = 21,999.98 : x
  2. Step 2: Convert to fraction form
    29,169.76/40,232.78 = 21,999.98/x
  3. Step 3: Cross multiply
    29,169.76x = 40,232.78 × 21,999.98
  4. Step 4: Simplify right side
    29,169.76x = 885,120,355.34
  5. Step 5: Solve for x
    x = 885,120,355.34/29,169.76
  6. Step 6: Final answer
    x = 30,343.77

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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.