Home / 19,711.44-29,610.90-19,089.36

Finding the Fourth Proportional to 19,711.44, 29,610.90 and 19,089.36

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Solution

The fourth proportional to 19,711.44, 29,610.90 and 19,089.36 is: 28,676.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,711.44 : 29,610.90 = 19,089.36 : x
  2. Step 2: Convert to fraction form
    19,711.44/29,610.90 = 19,089.36/x
  3. Step 3: Cross multiply
    19,711.44x = 29,610.90 × 19,089.36
  4. Step 4: Simplify right side
    19,711.44x = 565,253,130.02
  5. Step 5: Solve for x
    x = 565,253,130.02/19,711.44
  6. Step 6: Final answer
    x = 28,676.40

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1.5x scale

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.