Home / 22,712.57-31,337.07-13,635.60

Finding the Fourth Proportional to 22,712.57, 31,337.07 and 13,635.60

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Solution

The fourth proportional to 22,712.57, 31,337.07 and 13,635.60 is: 18,813.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,712.57 : 31,337.07 = 13,635.60 : x
  2. Step 2: Convert to fraction form
    22,712.57/31,337.07 = 13,635.60/x
  3. Step 3: Cross multiply
    22,712.57x = 31,337.07 × 13,635.60
  4. Step 4: Simplify right side
    22,712.57x = 427,299,751.69
  5. Step 5: Solve for x
    x = 427,299,751.69/22,712.57
  6. Step 6: Final answer
    x = 18,813.36

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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.