Home / 19,928.42-27,495.69-15,723.62

Finding the Fourth Proportional to 19,928.42, 27,495.69 and 15,723.62

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Solution

The fourth proportional to 19,928.42, 27,495.69 and 15,723.62 is: 21,694.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928.42 : 27,495.69 = 15,723.62 : x
  2. Step 2: Convert to fraction form
    19,928.42/27,495.69 = 15,723.62/x
  3. Step 3: Cross multiply
    19,928.42x = 27,495.69 × 15,723.62
  4. Step 4: Simplify right side
    19,928.42x = 432,331,781.20
  5. Step 5: Solve for x
    x = 432,331,781.20/19,928.42
  6. Step 6: Final answer
    x = 21,694.23

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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.