Home / 18,923.17-28,416.27-11,823.85

Finding the Fourth Proportional to 18,923.17, 28,416.27 and 11,823.85

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Solution

The fourth proportional to 18,923.17, 28,416.27 and 11,823.85 is: 17,755.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,923.17 : 28,416.27 = 11,823.85 : x
  2. Step 2: Convert to fraction form
    18,923.17/28,416.27 = 11,823.85/x
  3. Step 3: Cross multiply
    18,923.17x = 28,416.27 × 11,823.85
  4. Step 4: Simplify right side
    18,923.17x = 335,989,647.47
  5. Step 5: Solve for x
    x = 335,989,647.47/18,923.17
  6. Step 6: Final answer
    x = 17,755.46

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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.