Home / 17,117.20-23,628.24-12,880.58

Finding the Fourth Proportional to 17,117.20, 23,628.24 and 12,880.58

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Solution

The fourth proportional to 17,117.20, 23,628.24 and 12,880.58 is: 17,780.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,117.20 : 23,628.24 = 12,880.58 : x
  2. Step 2: Convert to fraction form
    17,117.20/23,628.24 = 12,880.58/x
  3. Step 3: Cross multiply
    17,117.20x = 23,628.24 × 12,880.58
  4. Step 4: Simplify right side
    17,117.20x = 304,345,435.58
  5. Step 5: Solve for x
    x = 304,345,435.58/17,117.20
  6. Step 6: Final answer
    x = 17,780.09

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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.