Home / 16,628.28-22,949.88-15,880.92

Finding the Fourth Proportional to 16,628.28, 22,949.88 and 15,880.92

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Solution

The fourth proportional to 16,628.28, 22,949.88 and 15,880.92 is: 21,918.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,628.28 : 22,949.88 = 15,880.92 : x
  2. Step 2: Convert to fraction form
    16,628.28/22,949.88 = 15,880.92/x
  3. Step 3: Cross multiply
    16,628.28x = 22,949.88 × 15,880.92
  4. Step 4: Simplify right side
    16,628.28x = 364,465,208.29
  5. Step 5: Solve for x
    x = 364,465,208.29/16,628.28
  6. Step 6: Final answer
    x = 21,918.39

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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.