Home / 21,959.24-32,920.39-17,788.91

Finding the Fourth Proportional to 21,959.24, 32,920.39 and 17,788.91

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Solution

The fourth proportional to 21,959.24, 32,920.39 and 17,788.91 is: 26,668.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,959.24 : 32,920.39 = 17,788.91 : x
  2. Step 2: Convert to fraction form
    21,959.24/32,920.39 = 17,788.91/x
  3. Step 3: Cross multiply
    21,959.24x = 32,920.39 × 17,788.91
  4. Step 4: Simplify right side
    21,959.24x = 585,617,854.87
  5. Step 5: Solve for x
    x = 585,617,854.87/21,959.24
  6. Step 6: Final answer
    x = 26,668.40

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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.