Home / 29,579.84-40,820.20-16,151.28

Finding the Fourth Proportional to 29,579.84, 40,820.20 and 16,151.28

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Solution

The fourth proportional to 29,579.84, 40,820.20 and 16,151.28 is: 22,288.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,579.84 : 40,820.20 = 16,151.28 : x
  2. Step 2: Convert to fraction form
    29,579.84/40,820.20 = 16,151.28/x
  3. Step 3: Cross multiply
    29,579.84x = 40,820.20 × 16,151.28
  4. Step 4: Simplify right side
    29,579.84x = 659,298,479.86
  5. Step 5: Solve for x
    x = 659,298,479.86/29,579.84
  6. Step 6: Final answer
    x = 22,288.78

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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.