Home / 29,305.09-40,441.11-15,876.28

Finding the Fourth Proportional to 29,305.09, 40,441.11 and 15,876.28

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Solution

The fourth proportional to 29,305.09, 40,441.11 and 15,876.28 is: 21,909.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,305.09 : 40,441.11 = 15,876.28 : x
  2. Step 2: Convert to fraction form
    29,305.09/40,441.11 = 15,876.28/x
  3. Step 3: Cross multiply
    29,305.09x = 40,441.11 × 15,876.28
  4. Step 4: Simplify right side
    29,305.09x = 642,054,385.87
  5. Step 5: Solve for x
    x = 642,054,385.87/29,305.09
  6. Step 6: Final answer
    x = 21,909.31

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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.