Home / 40,310.30-60,383.10-19,186.40

Finding the Fourth Proportional to 40,310.30, 60,383.10 and 19,186.40

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Solution

The fourth proportional to 40,310.30, 60,383.10 and 19,186.40 is: 28,740.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,310.30 : 60,383.10 = 19,186.40 : x
  2. Step 2: Convert to fraction form
    40,310.30/60,383.10 = 19,186.40/x
  3. Step 3: Cross multiply
    40,310.30x = 60,383.10 × 19,186.40
  4. Step 4: Simplify right side
    40,310.30x = 1,158,534,309.84
  5. Step 5: Solve for x
    x = 1,158,534,309.84/40,310.30
  6. Step 6: Final answer
    x = 28,740.40

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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.