Home / 29,722.86-40,991.34-18,390.54

Finding the Fourth Proportional to 29,722.86, 40,991.34 and 18,390.54

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Solution

The fourth proportional to 29,722.86, 40,991.34 and 18,390.54 is: 25,362.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,722.86 : 40,991.34 = 18,390.54 : x
  2. Step 2: Convert to fraction form
    29,722.86/40,991.34 = 18,390.54/x
  3. Step 3: Cross multiply
    29,722.86x = 40,991.34 × 18,390.54
  4. Step 4: Simplify right side
    29,722.86x = 753,852,877.92
  5. Step 5: Solve for x
    x = 753,852,877.92/29,722.86
  6. Step 6: Final answer
    x = 25,362.73

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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.