Home / 27,920.90-38,516.41-17,292.08

Finding the Fourth Proportional to 27,920.90, 38,516.41 and 17,292.08

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Solution

The fourth proportional to 27,920.90, 38,516.41 and 17,292.08 is: 23,854.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,920.90 : 38,516.41 = 17,292.08 : x
  2. Step 2: Convert to fraction form
    27,920.90/38,516.41 = 17,292.08/x
  3. Step 3: Cross multiply
    27,920.90x = 38,516.41 × 17,292.08
  4. Step 4: Simplify right side
    27,920.90x = 666,028,960.94
  5. Step 5: Solve for x
    x = 666,028,960.94/27,920.90
  6. Step 6: Final answer
    x = 23,854.13

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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.