Home / 18,279.61-27,430.34-16,792.45

Finding the Fourth Proportional to 18,279.61, 27,430.34 and 16,792.45

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Solution

The fourth proportional to 18,279.61, 27,430.34 and 16,792.45 is: 25,198.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,279.61 : 27,430.34 = 16,792.45 : x
  2. Step 2: Convert to fraction form
    18,279.61/27,430.34 = 16,792.45/x
  3. Step 3: Cross multiply
    18,279.61x = 27,430.34 × 16,792.45
  4. Step 4: Simplify right side
    18,279.61x = 460,622,460.39
  5. Step 5: Solve for x
    x = 460,622,460.39/18,279.61
  6. Step 6: Final answer
    x = 25,198.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.