Home / 29,400.32-40,571.96-15,971.78

Finding the Fourth Proportional to 29,400.32, 40,571.96 and 15,971.78

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Solution

The fourth proportional to 29,400.32, 40,571.96 and 15,971.78 is: 22,040.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,400.32 : 40,571.96 = 15,971.78 : x
  2. Step 2: Convert to fraction form
    29,400.32/40,571.96 = 15,971.78/x
  3. Step 3: Cross multiply
    29,400.32x = 40,571.96 × 15,971.78
  4. Step 4: Simplify right side
    29,400.32x = 648,006,440.86
  5. Step 5: Solve for x
    x = 648,006,440.86/29,400.32
  6. Step 6: Final answer
    x = 22,040.79

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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.