Home / 42,682.24-64,022.08-11,519.36

Finding the Fourth Proportional to 42,682.24, 64,022.08 and 11,519.36

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Solution

The fourth proportional to 42,682.24, 64,022.08 and 11,519.36 is: 17,278.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,682.24 : 64,022.08 = 11,519.36 : x
  2. Step 2: Convert to fraction form
    42,682.24/64,022.08 = 11,519.36/x
  3. Step 3: Cross multiply
    42,682.24x = 64,022.08 × 11,519.36
  4. Step 4: Simplify right side
    42,682.24x = 737,493,387.47
  5. Step 5: Solve for x
    x = 737,493,387.47/42,682.24
  6. Step 6: Final answer
    x = 17,278.69

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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.