Home / 19,788.86-29,689.50-8,704.87

Finding the Fourth Proportional to 19,788.86, 29,689.50 and 8,704.87

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Solution

The fourth proportional to 19,788.86, 29,689.50 and 8,704.87 is: 13,060.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,788.86 : 29,689.50 = 8,704.87 : x
  2. Step 2: Convert to fraction form
    19,788.86/29,689.50 = 8,704.87/x
  3. Step 3: Cross multiply
    19,788.86x = 29,689.50 × 8,704.87
  4. Step 4: Simplify right side
    19,788.86x = 258,443,237.87
  5. Step 5: Solve for x
    x = 258,443,237.87/19,788.86
  6. Step 6: Final answer
    x = 13,060.04

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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.