Home / 22,456.24-30,989.64-13,503.84

Finding the Fourth Proportional to 22,456.24, 30,989.64 and 13,503.84

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Solution

The fourth proportional to 22,456.24, 30,989.64 and 13,503.84 is: 18,635.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,456.24 : 30,989.64 = 13,503.84 : x
  2. Step 2: Convert to fraction form
    22,456.24/30,989.64 = 13,503.84/x
  3. Step 3: Cross multiply
    22,456.24x = 30,989.64 × 13,503.84
  4. Step 4: Simplify right side
    22,456.24x = 418,479,140.22
  5. Step 5: Solve for x
    x = 418,479,140.22/22,456.24
  6. Step 6: Final answer
    x = 18,635.32

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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.