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Finding the Fourth Proportional to 40,342.58, 60,473.01 and 20,291.49

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Solution

The fourth proportional to 40,342.58, 60,473.01 and 20,291.49 is: 30,416.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,342.58 : 60,473.01 = 20,291.49 : x
  2. Step 2: Convert to fraction form
    40,342.58/60,473.01 = 20,291.49/x
  3. Step 3: Cross multiply
    40,342.58x = 60,473.01 × 20,291.49
  4. Step 4: Simplify right side
    40,342.58x = 1,227,087,212.49
  5. Step 5: Solve for x
    x = 1,227,087,212.49/40,342.58
  6. Step 6: Final answer
    x = 30,416.68

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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.