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Finding the Fourth Proportional to 40,360.84, 60,541.26 and 12,661

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Solution

The fourth proportional to 40,360.84, 60,541.26 and 12,661 is: 18,991.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,360.84 : 60,541.26 = 12,661 : x
  2. Step 2: Convert to fraction form
    40,360.84/60,541.26 = 12,661/x
  3. Step 3: Cross multiply
    40,360.84x = 60,541.26 × 12,661
  4. Step 4: Simplify right side
    40,360.84x = 766,512,892.86
  5. Step 5: Solve for x
    x = 766,512,892.86/40,360.84
  6. Step 6: Final answer
    x = 18,991.50

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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.