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Finding the Fourth Proportional to 23,211, 32,015.79 and 15,554.49

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Solution

The fourth proportional to 23,211, 32,015.79 and 15,554.49 is: 21,454.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,211 : 32,015.79 = 15,554.49 : x
  2. Step 2: Convert to fraction form
    23,211/32,015.79 = 15,554.49/x
  3. Step 3: Cross multiply
    23,211x = 32,015.79 × 15,554.49
  4. Step 4: Simplify right side
    23,211x = 497,989,285.40
  5. Step 5: Solve for x
    x = 497,989,285.40/23,211
  6. Step 6: Final answer
    x = 21,454.88

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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.