Home / 17,920.14-26,880.81-13,766.46

Finding the Fourth Proportional to 17,920.14, 26,880.81 and 13,766.46

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Solution

The fourth proportional to 17,920.14, 26,880.81 and 13,766.46 is: 20,650.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,920.14 : 26,880.81 = 13,766.46 : x
  2. Step 2: Convert to fraction form
    17,920.14/26,880.81 = 13,766.46/x
  3. Step 3: Cross multiply
    17,920.14x = 26,880.81 × 13,766.46
  4. Step 4: Simplify right side
    17,920.14x = 370,053,595.63
  5. Step 5: Solve for x
    x = 370,053,595.63/17,920.14
  6. Step 6: Final answer
    x = 20,650.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.