Home / 30,636.28-45,957.40-11,917.82

Finding the Fourth Proportional to 30,636.28, 45,957.40 and 11,917.82

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Solution

The fourth proportional to 30,636.28, 45,957.40 and 11,917.82 is: 17,877.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,636.28 : 45,957.40 = 11,917.82 : x
  2. Step 2: Convert to fraction form
    30,636.28/45,957.40 = 11,917.82/x
  3. Step 3: Cross multiply
    30,636.28x = 45,957.40 × 11,917.82
  4. Step 4: Simplify right side
    30,636.28x = 547,712,020.87
  5. Step 5: Solve for x
    x = 547,712,020.87/30,636.28
  6. Step 6: Final answer
    x = 17,877.89

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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.