Home / 15,813.64-23,721.90-8,020.36

Finding the Fourth Proportional to 15,813.64, 23,721.90 and 8,020.36

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Solution

The fourth proportional to 15,813.64, 23,721.90 and 8,020.36 is: 12,031.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,813.64 : 23,721.90 = 8,020.36 : x
  2. Step 2: Convert to fraction form
    15,813.64/23,721.90 = 8,020.36/x
  3. Step 3: Cross multiply
    15,813.64x = 23,721.90 × 8,020.36
  4. Step 4: Simplify right side
    15,813.64x = 190,258,177.88
  5. Step 5: Solve for x
    x = 190,258,177.88/15,813.64
  6. Step 6: Final answer
    x = 12,031.27

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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.