Home / 47,910.90-71,862.98-17,919.42

Finding the Fourth Proportional to 47,910.90, 71,862.98 and 17,919.42

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Solution

The fourth proportional to 47,910.90, 71,862.98 and 17,919.42 is: 26,877.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,910.90 : 71,862.98 = 17,919.42 : x
  2. Step 2: Convert to fraction form
    47,910.90/71,862.98 = 17,919.42/x
  3. Step 3: Cross multiply
    47,910.90x = 71,862.98 × 17,919.42
  4. Step 4: Simplify right side
    47,910.90x = 1,287,742,921.07
  5. Step 5: Solve for x
    x = 1,287,742,921.07/47,910.90
  6. Step 6: Final answer
    x = 26,877.87

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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.