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Finding the Fourth Proportional to 40,539.66, 60,809.49 and 12,835.50

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Solution

The fourth proportional to 40,539.66, 60,809.49 and 12,835.50 is: 19,253.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,539.66 : 60,809.49 = 12,835.50 : x
  2. Step 2: Convert to fraction form
    40,539.66/60,809.49 = 12,835.50/x
  3. Step 3: Cross multiply
    40,539.66x = 60,809.49 × 12,835.50
  4. Step 4: Simplify right side
    40,539.66x = 780,520,208.90
  5. Step 5: Solve for x
    x = 780,520,208.90/40,539.66
  6. Step 6: Final answer
    x = 19,253.25

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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.