Home / 40,228.40-60,349.80-16,857.20

Finding the Fourth Proportional to 40,228.40, 60,349.80 and 16,857.20

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Solution

The fourth proportional to 40,228.40, 60,349.80 and 16,857.20 is: 25,288.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,228.40 : 60,349.80 = 16,857.20 : x
  2. Step 2: Convert to fraction form
    40,228.40/60,349.80 = 16,857.20/x
  3. Step 3: Cross multiply
    40,228.40x = 60,349.80 × 16,857.20
  4. Step 4: Simplify right side
    40,228.40x = 1,017,328,648.56
  5. Step 5: Solve for x
    x = 1,017,328,648.56/40,228.40
  6. Step 6: Final answer
    x = 25,288.82

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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.