Home / 22,121.51-33,160.39-10,278.90

Finding the Fourth Proportional to 22,121.51, 33,160.39 and 10,278.90

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Solution

The fourth proportional to 22,121.51, 33,160.39 and 10,278.90 is: 15,408.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,121.51 : 33,160.39 = 10,278.90 : x
  2. Step 2: Convert to fraction form
    22,121.51/33,160.39 = 10,278.90/x
  3. Step 3: Cross multiply
    22,121.51x = 33,160.39 × 10,278.90
  4. Step 4: Simplify right side
    22,121.51x = 340,852,307.07
  5. Step 5: Solve for x
    x = 340,852,307.07/22,121.51
  6. Step 6: Final answer
    x = 15,408.19

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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.