Home / 42,635.88-63,953.78-11,471.13

Finding the Fourth Proportional to 42,635.88, 63,953.78 and 11,471.13

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Solution

The fourth proportional to 42,635.88, 63,953.78 and 11,471.13 is: 17,206.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,635.88 : 63,953.78 = 11,471.13 : x
  2. Step 2: Convert to fraction form
    42,635.88/63,953.78 = 11,471.13/x
  3. Step 3: Cross multiply
    42,635.88x = 63,953.78 × 11,471.13
  4. Step 4: Simplify right side
    42,635.88x = 733,622,067.02
  5. Step 5: Solve for x
    x = 733,622,067.02/42,635.88
  6. Step 6: Final answer
    x = 17,206.68

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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.