Home / 21,782.92-32,668.14-11,926.60

Finding the Fourth Proportional to 21,782.92, 32,668.14 and 11,926.60

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Solution

The fourth proportional to 21,782.92, 32,668.14 and 11,926.60 is: 17,886.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,782.92 : 32,668.14 = 11,926.60 : x
  2. Step 2: Convert to fraction form
    21,782.92/32,668.14 = 11,926.60/x
  3. Step 3: Cross multiply
    21,782.92x = 32,668.14 × 11,926.60
  4. Step 4: Simplify right side
    21,782.92x = 389,619,838.52
  5. Step 5: Solve for x
    x = 389,619,838.52/21,782.92
  6. Step 6: Final answer
    x = 17,886.48

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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.