Home / 29,305.62-40,441.69-15,877.20

Finding the Fourth Proportional to 29,305.62, 40,441.69 and 15,877.20

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Solution

The fourth proportional to 29,305.62, 40,441.69 and 15,877.20 is: 21,910.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,305.62 : 40,441.69 = 15,877.20 : x
  2. Step 2: Convert to fraction form
    29,305.62/40,441.69 = 15,877.20/x
  3. Step 3: Cross multiply
    29,305.62x = 40,441.69 × 15,877.20
  4. Step 4: Simplify right side
    29,305.62x = 642,100,800.47
  5. Step 5: Solve for x
    x = 642,100,800.47/29,305.62
  6. Step 6: Final answer
    x = 21,910.50

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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.