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Finding the Fourth Proportional to 40,608.70, 60,910.88 and 12,904.54

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Solution

The fourth proportional to 40,608.70, 60,910.88 and 12,904.54 is: 19,356.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,608.70 : 60,910.88 = 12,904.54 : x
  2. Step 2: Convert to fraction form
    40,608.70/60,910.88 = 12,904.54/x
  3. Step 3: Cross multiply
    40,608.70x = 60,910.88 × 12,904.54
  4. Step 4: Simplify right side
    40,608.70x = 786,026,887.40
  5. Step 5: Solve for x
    x = 786,026,887.40/40,608.70
  6. Step 6: Final answer
    x = 19,356.12

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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.