Home / 28,629.24-42,956.22-15,490.88

Finding the Fourth Proportional to 28,629.24, 42,956.22 and 15,490.88

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Solution

The fourth proportional to 28,629.24, 42,956.22 and 15,490.88 is: 23,243.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,629.24 : 42,956.22 = 15,490.88 : x
  2. Step 2: Convert to fraction form
    28,629.24/42,956.22 = 15,490.88/x
  3. Step 3: Cross multiply
    28,629.24x = 42,956.22 × 15,490.88
  4. Step 4: Simplify right side
    28,629.24x = 665,429,649.27
  5. Step 5: Solve for x
    x = 665,429,649.27/28,629.24
  6. Step 6: Final answer
    x = 23,243.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.