Home / 16,468.77-22,740-15,209.37

Finding the Fourth Proportional to 16,468.77, 22,740 and 15,209.37

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Solution

The fourth proportional to 16,468.77, 22,740 and 15,209.37 is: 21,001.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,468.77 : 22,740 = 15,209.37 : x
  2. Step 2: Convert to fraction form
    16,468.77/22,740 = 15,209.37/x
  3. Step 3: Cross multiply
    16,468.77x = 22,740 × 15,209.37
  4. Step 4: Simplify right side
    16,468.77x = 345,861,073.80
  5. Step 5: Solve for x
    x = 345,861,073.80/16,468.77
  6. Step 6: Final answer
    x = 21,001.03

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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.