Home / 45,220.23-67,822.47-11,940.57

Finding the Fourth Proportional to 45,220.23, 67,822.47 and 11,940.57

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Solution

The fourth proportional to 45,220.23, 67,822.47 and 11,940.57 is: 17,908.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,220.23 : 67,822.47 = 11,940.57 : x
  2. Step 2: Convert to fraction form
    45,220.23/67,822.47 = 11,940.57/x
  3. Step 3: Cross multiply
    45,220.23x = 67,822.47 × 11,940.57
  4. Step 4: Simplify right side
    45,220.23x = 809,838,950.61
  5. Step 5: Solve for x
    x = 809,838,950.61/45,220.23
  6. Step 6: Final answer
    x = 17,908.78

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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.