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Finding the Fourth Proportional to 26,661.60, 39,943.80 and 16,261.20

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Solution

The fourth proportional to 26,661.60, 39,943.80 and 16,261.20 is: 24,362.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,661.60 : 39,943.80 = 16,261.20 : x
  2. Step 2: Convert to fraction form
    26,661.60/39,943.80 = 16,261.20/x
  3. Step 3: Cross multiply
    26,661.60x = 39,943.80 × 16,261.20
  4. Step 4: Simplify right side
    26,661.60x = 649,534,120.56
  5. Step 5: Solve for x
    x = 649,534,120.56/26,661.60
  6. Step 6: Final answer
    x = 24,362.16

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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.