Home / 29,269.35-40,391.46-15,840.46

Finding the Fourth Proportional to 29,269.35, 40,391.46 and 15,840.46

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Solution

The fourth proportional to 29,269.35, 40,391.46 and 15,840.46 is: 21,859.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,269.35 : 40,391.46 = 15,840.46 : x
  2. Step 2: Convert to fraction form
    29,269.35/40,391.46 = 15,840.46/x
  3. Step 3: Cross multiply
    29,269.35x = 40,391.46 × 15,840.46
  4. Step 4: Simplify right side
    29,269.35x = 639,819,356.96
  5. Step 5: Solve for x
    x = 639,819,356.96/29,269.35
  6. Step 6: Final answer
    x = 21,859.71

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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.