Home / 29,269.13-40,391.49-15,840.38

Finding the Fourth Proportional to 29,269.13, 40,391.49 and 15,840.38

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Solution

The fourth proportional to 29,269.13, 40,391.49 and 15,840.38 is: 21,859.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,269.13 : 40,391.49 = 15,840.38 : x
  2. Step 2: Convert to fraction form
    29,269.13/40,391.49 = 15,840.38/x
  3. Step 3: Cross multiply
    29,269.13x = 40,391.49 × 15,840.38
  4. Step 4: Simplify right side
    29,269.13x = 639,816,550.37
  5. Step 5: Solve for x
    x = 639,816,550.37/29,269.13
  6. Step 6: Final answer
    x = 21,859.77

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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.