Home / 27,756.23-38,279.39-19,673.90

Finding the Fourth Proportional to 27,756.23, 38,279.39 and 19,673.90

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Solution

The fourth proportional to 27,756.23, 38,279.39 and 19,673.90 is: 27,132.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,756.23 : 38,279.39 = 19,673.90 : x
  2. Step 2: Convert to fraction form
    27,756.23/38,279.39 = 19,673.90/x
  3. Step 3: Cross multiply
    27,756.23x = 38,279.39 × 19,673.90
  4. Step 4: Simplify right side
    27,756.23x = 753,104,792.55
  5. Step 5: Solve for x
    x = 753,104,792.55/27,756.23
  6. Step 6: Final answer
    x = 27,132.82

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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.