Home / 19,329.68-26,728.65-15,343.88

Finding the Fourth Proportional to 19,329.68, 26,728.65 and 15,343.88

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Solution

The fourth proportional to 19,329.68, 26,728.65 and 15,343.88 is: 21,217.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,329.68 : 26,728.65 = 15,343.88 : x
  2. Step 2: Convert to fraction form
    19,329.68/26,728.65 = 15,343.88/x
  3. Step 3: Cross multiply
    19,329.68x = 26,728.65 × 15,343.88
  4. Step 4: Simplify right side
    19,329.68x = 410,121,198.16
  5. Step 5: Solve for x
    x = 410,121,198.16/19,329.68
  6. Step 6: Final answer
    x = 21,217.17

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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.