Home / 22,603.14-31,190.40-13,172.58

Finding the Fourth Proportional to 22,603.14, 31,190.40 and 13,172.58

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Solution

The fourth proportional to 22,603.14, 31,190.40 and 13,172.58 is: 18,177.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,603.14 : 31,190.40 = 13,172.58 : x
  2. Step 2: Convert to fraction form
    22,603.14/31,190.40 = 13,172.58/x
  3. Step 3: Cross multiply
    22,603.14x = 31,190.40 × 13,172.58
  4. Step 4: Simplify right side
    22,603.14x = 410,858,039.23
  5. Step 5: Solve for x
    x = 410,858,039.23/22,603.14
  6. Step 6: Final answer
    x = 18,177.03

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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.