Home / 40,424.20-60,636.30-20,741.20

Finding the Fourth Proportional to 40,424.20, 60,636.30 and 20,741.20

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Solution

The fourth proportional to 40,424.20, 60,636.30 and 20,741.20 is: 31,111.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,424.20 : 60,636.30 = 20,741.20 : x
  2. Step 2: Convert to fraction form
    40,424.20/60,636.30 = 20,741.20/x
  3. Step 3: Cross multiply
    40,424.20x = 60,636.30 × 20,741.20
  4. Step 4: Simplify right side
    40,424.20x = 1,257,669,625.56
  5. Step 5: Solve for x
    x = 1,257,669,625.56/40,424.20
  6. Step 6: Final answer
    x = 31,111.80

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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.