Home / 22,461.62-30,998.40-12,390.02

Finding the Fourth Proportional to 22,461.62, 30,998.40 and 12,390.02

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Solution

The fourth proportional to 22,461.62, 30,998.40 and 12,390.02 is: 17,098.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,461.62 : 30,998.40 = 12,390.02 : x
  2. Step 2: Convert to fraction form
    22,461.62/30,998.40 = 12,390.02/x
  3. Step 3: Cross multiply
    22,461.62x = 30,998.40 × 12,390.02
  4. Step 4: Simplify right side
    22,461.62x = 384,070,795.97
  5. Step 5: Solve for x
    x = 384,070,795.97/22,461.62
  6. Step 6: Final answer
    x = 17,098.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.