Home / 22,219.57-33,331.13-7,428.57

Finding the Fourth Proportional to 22,219.57, 33,331.13 and 7,428.57

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Solution

The fourth proportional to 22,219.57, 33,331.13 and 7,428.57 is: 11,143.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,219.57 : 33,331.13 = 7,428.57 : x
  2. Step 2: Convert to fraction form
    22,219.57/33,331.13 = 7,428.57/x
  3. Step 3: Cross multiply
    22,219.57x = 33,331.13 × 7,428.57
  4. Step 4: Simplify right side
    22,219.57x = 247,602,558.34
  5. Step 5: Solve for x
    x = 247,602,558.34/22,219.57
  6. Step 6: Final answer
    x = 11,143.44

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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.