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Finding the Fourth Proportional to 40,267.84, 60,456.96 and 20,559.68

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Solution

The fourth proportional to 40,267.84, 60,456.96 and 20,559.68 is: 30,867.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,267.84 : 60,456.96 = 20,559.68 : x
  2. Step 2: Convert to fraction form
    40,267.84/60,456.96 = 20,559.68/x
  3. Step 3: Cross multiply
    40,267.84x = 60,456.96 × 20,559.68
  4. Step 4: Simplify right side
    40,267.84x = 1,242,975,751.37
  5. Step 5: Solve for x
    x = 1,242,975,751.37/40,267.84
  6. Step 6: Final answer
    x = 30,867.70

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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.