Home / 19,967.28-29,951.04-8,871.36

Finding the Fourth Proportional to 19,967.28, 29,951.04 and 8,871.36

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Solution

The fourth proportional to 19,967.28, 29,951.04 and 8,871.36 is: 13,307.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,967.28 : 29,951.04 = 8,871.36 : x
  2. Step 2: Convert to fraction form
    19,967.28/29,951.04 = 8,871.36/x
  3. Step 3: Cross multiply
    19,967.28x = 29,951.04 × 8,871.36
  4. Step 4: Simplify right side
    19,967.28x = 265,706,458.21
  5. Step 5: Solve for x
    x = 265,706,458.21/19,967.28
  6. Step 6: Final answer
    x = 13,307.09

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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.