Home / 29,299.86-40,433.85-15,871.23

Finding the Fourth Proportional to 29,299.86, 40,433.85 and 15,871.23

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Solution

The fourth proportional to 29,299.86, 40,433.85 and 15,871.23 is: 21,902.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,299.86 : 40,433.85 = 15,871.23 : x
  2. Step 2: Convert to fraction form
    29,299.86/40,433.85 = 15,871.23/x
  3. Step 3: Cross multiply
    29,299.86x = 40,433.85 × 15,871.23
  4. Step 4: Simplify right side
    29,299.86x = 641,734,933.14
  5. Step 5: Solve for x
    x = 641,734,933.14/29,299.86
  6. Step 6: Final answer
    x = 21,902.32

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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.