Home / 40,530.88-60,795.20-12,828.16

Finding the Fourth Proportional to 40,530.88, 60,795.20 and 12,828.16

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Solution

The fourth proportional to 40,530.88, 60,795.20 and 12,828.16 is: 19,241.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,530.88 : 60,795.20 = 12,828.16 : x
  2. Step 2: Convert to fraction form
    40,530.88/60,795.20 = 12,828.16/x
  3. Step 3: Cross multiply
    40,530.88x = 60,795.20 × 12,828.16
  4. Step 4: Simplify right side
    40,530.88x = 779,890,552.83
  5. Step 5: Solve for x
    x = 779,890,552.83/40,530.88
  6. Step 6: Final answer
    x = 19,241.89

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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.