Home / 45,215.24-67,815-11,935.56

Finding the Fourth Proportional to 45,215.24, 67,815 and 11,935.56

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Solution

The fourth proportional to 45,215.24, 67,815 and 11,935.56 is: 17,901.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,215.24 : 67,815 = 11,935.56 : x
  2. Step 2: Convert to fraction form
    45,215.24/67,815 = 11,935.56/x
  3. Step 3: Cross multiply
    45,215.24x = 67,815 × 11,935.56
  4. Step 4: Simplify right side
    45,215.24x = 809,410,001.40
  5. Step 5: Solve for x
    x = 809,410,001.40/45,215.24
  6. Step 6: Final answer
    x = 17,901.27

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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.