Home / 22,177.28-30,603.88-13,220.18

Finding the Fourth Proportional to 22,177.28, 30,603.88 and 13,220.18

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Solution

The fourth proportional to 22,177.28, 30,603.88 and 13,220.18 is: 18,243.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,177.28 : 30,603.88 = 13,220.18 : x
  2. Step 2: Convert to fraction form
    22,177.28/30,603.88 = 13,220.18/x
  3. Step 3: Cross multiply
    22,177.28x = 30,603.88 × 13,220.18
  4. Step 4: Simplify right side
    22,177.28x = 404,588,802.30
  5. Step 5: Solve for x
    x = 404,588,802.30/22,177.28
  6. Step 6: Final answer
    x = 18,243.39

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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.