Home / 19,222.19-28,760.25-11,727.79

Finding the Fourth Proportional to 19,222.19, 28,760.25 and 11,727.79

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Solution

The fourth proportional to 19,222.19, 28,760.25 and 11,727.79 is: 17,547.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,222.19 : 28,760.25 = 11,727.79 : x
  2. Step 2: Convert to fraction form
    19,222.19/28,760.25 = 11,727.79/x
  3. Step 3: Cross multiply
    19,222.19x = 28,760.25 × 11,727.79
  4. Step 4: Simplify right side
    19,222.19x = 337,294,053.72
  5. Step 5: Solve for x
    x = 337,294,053.72/19,222.19
  6. Step 6: Final answer
    x = 17,547.12

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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.