Home / 27,670.49-38,217.14-20,150.45

Finding the Fourth Proportional to 27,670.49, 38,217.14 and 20,150.45

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Solution

The fourth proportional to 27,670.49, 38,217.14 and 20,150.45 is: 27,830.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,670.49 : 38,217.14 = 20,150.45 : x
  2. Step 2: Convert to fraction form
    27,670.49/38,217.14 = 20,150.45/x
  3. Step 3: Cross multiply
    27,670.49x = 38,217.14 × 20,150.45
  4. Step 4: Simplify right side
    27,670.49x = 770,092,568.71
  5. Step 5: Solve for x
    x = 770,092,568.71/27,670.49
  6. Step 6: Final answer
    x = 27,830.83

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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.