Home / 40,122.40-60,193.20-19,328.80

Finding the Fourth Proportional to 40,122.40, 60,193.20 and 19,328.80

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Solution

The fourth proportional to 40,122.40, 60,193.20 and 19,328.80 is: 28,997.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,122.40 : 60,193.20 = 19,328.80 : x
  2. Step 2: Convert to fraction form
    40,122.40/60,193.20 = 19,328.80/x
  3. Step 3: Cross multiply
    40,122.40x = 60,193.20 × 19,328.80
  4. Step 4: Simplify right side
    40,122.40x = 1,163,462,324.16
  5. Step 5: Solve for x
    x = 1,163,462,324.16/40,122.40
  6. Step 6: Final answer
    x = 28,997.82

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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.