Home / 16,920.95-23,343.09-10,954.55

Finding the Fourth Proportional to 16,920.95, 23,343.09 and 10,954.55

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Solution

The fourth proportional to 16,920.95, 23,343.09 and 10,954.55 is: 15,112.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,920.95 : 23,343.09 = 10,954.55 : x
  2. Step 2: Convert to fraction form
    16,920.95/23,343.09 = 10,954.55/x
  3. Step 3: Cross multiply
    16,920.95x = 23,343.09 × 10,954.55
  4. Step 4: Simplify right side
    16,920.95x = 255,713,046.56
  5. Step 5: Solve for x
    x = 255,713,046.56/16,920.95
  6. Step 6: Final answer
    x = 15,112.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.