Home / 29,406.39-40,581.20-15,977.88

Finding the Fourth Proportional to 29,406.39, 40,581.20 and 15,977.88

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Solution

The fourth proportional to 29,406.39, 40,581.20 and 15,977.88 is: 22,049.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,406.39 : 40,581.20 = 15,977.88 : x
  2. Step 2: Convert to fraction form
    29,406.39/40,581.20 = 15,977.88/x
  3. Step 3: Cross multiply
    29,406.39x = 40,581.20 × 15,977.88
  4. Step 4: Simplify right side
    29,406.39x = 648,401,697.94
  5. Step 5: Solve for x
    x = 648,401,697.94/29,406.39
  6. Step 6: Final answer
    x = 22,049.69

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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.