Home / 27,721.96-38,270.12-17,117.44

Finding the Fourth Proportional to 27,721.96, 38,270.12 and 17,117.44

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Solution

The fourth proportional to 27,721.96, 38,270.12 and 17,117.44 is: 23,630.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,721.96 : 38,270.12 = 17,117.44 : x
  2. Step 2: Convert to fraction form
    27,721.96/38,270.12 = 17,117.44/x
  3. Step 3: Cross multiply
    27,721.96x = 38,270.12 × 17,117.44
  4. Step 4: Simplify right side
    27,721.96x = 655,086,482.89
  5. Step 5: Solve for x
    x = 655,086,482.89/27,721.96
  6. Step 6: Final answer
    x = 23,630.60

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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.