Home / 29,297.15-40,430.25-15,868.56

Finding the Fourth Proportional to 29,297.15, 40,430.25 and 15,868.56

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Solution

The fourth proportional to 29,297.15, 40,430.25 and 15,868.56 is: 21,898.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,297.15 : 40,430.25 = 15,868.56 : x
  2. Step 2: Convert to fraction form
    29,297.15/40,430.25 = 15,868.56/x
  3. Step 3: Cross multiply
    29,297.15x = 40,430.25 × 15,868.56
  4. Step 4: Simplify right side
    29,297.15x = 641,569,847.94
  5. Step 5: Solve for x
    x = 641,569,847.94/29,297.15
  6. Step 6: Final answer
    x = 21,898.71

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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.