Home / 29,428.67-40,611.36-15,999.92

Finding the Fourth Proportional to 29,428.67, 40,611.36 and 15,999.92

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Solution

The fourth proportional to 29,428.67, 40,611.36 and 15,999.92 is: 22,079.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,428.67 : 40,611.36 = 15,999.92 : x
  2. Step 2: Convert to fraction form
    29,428.67/40,611.36 = 15,999.92/x
  3. Step 3: Cross multiply
    29,428.67x = 40,611.36 × 15,999.92
  4. Step 4: Simplify right side
    29,428.67x = 649,778,308.03
  5. Step 5: Solve for x
    x = 649,778,308.03/29,428.67
  6. Step 6: Final answer
    x = 22,079.78

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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.