Home / 42,919.56-64,383-11,754.84

Finding the Fourth Proportional to 42,919.56, 64,383 and 11,754.84

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Solution

The fourth proportional to 42,919.56, 64,383 and 11,754.84 is: 17,633.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,919.56 : 64,383 = 11,754.84 : x
  2. Step 2: Convert to fraction form
    42,919.56/64,383 = 11,754.84/x
  3. Step 3: Cross multiply
    42,919.56x = 64,383 × 11,754.84
  4. Step 4: Simplify right side
    42,919.56x = 756,811,863.72
  5. Step 5: Solve for x
    x = 756,811,863.72/42,919.56
  6. Step 6: Final answer
    x = 17,633.26

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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.