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Finding the Fourth Proportional to 23,879.64, 35,770.24 and 13,988.94

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Solution

The fourth proportional to 23,879.64, 35,770.24 and 13,988.94 is: 20,954.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,879.64 : 35,770.24 = 13,988.94 : x
  2. Step 2: Convert to fraction form
    23,879.64/35,770.24 = 13,988.94/x
  3. Step 3: Cross multiply
    23,879.64x = 35,770.24 × 13,988.94
  4. Step 4: Simplify right side
    23,879.64x = 500,387,492.35
  5. Step 5: Solve for x
    x = 500,387,492.35/23,879.64
  6. Step 6: Final answer
    x = 20,954.57

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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.