Home / 27,623.70-38,119.38-15,685.46

Finding the Fourth Proportional to 27,623.70, 38,119.38 and 15,685.46

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Solution

The fourth proportional to 27,623.70, 38,119.38 and 15,685.46 is: 21,645.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,623.70 : 38,119.38 = 15,685.46 : x
  2. Step 2: Convert to fraction form
    27,623.70/38,119.38 = 15,685.46/x
  3. Step 3: Cross multiply
    27,623.70x = 38,119.38 × 15,685.46
  4. Step 4: Simplify right side
    27,623.70x = 597,920,010.21
  5. Step 5: Solve for x
    x = 597,920,010.21/27,623.70
  6. Step 6: Final answer
    x = 21,645.18

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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.