Home / 27,920.71-38,535.38-18,962.11

Finding the Fourth Proportional to 27,920.71, 38,535.38 and 18,962.11

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Solution

The fourth proportional to 27,920.71, 38,535.38 and 18,962.11 is: 26,170.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,920.71 : 38,535.38 = 18,962.11 : x
  2. Step 2: Convert to fraction form
    27,920.71/38,535.38 = 18,962.11/x
  3. Step 3: Cross multiply
    27,920.71x = 38,535.38 × 18,962.11
  4. Step 4: Simplify right side
    27,920.71x = 730,712,114.45
  5. Step 5: Solve for x
    x = 730,712,114.45/27,920.71
  6. Step 6: Final answer
    x = 26,170.97

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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.