Home / 19,132.92-28,715.16-9,779.82

Finding the Fourth Proportional to 19,132.92, 28,715.16 and 9,779.82

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Solution

The fourth proportional to 19,132.92, 28,715.16 and 9,779.82 is: 14,677.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,132.92 : 28,715.16 = 9,779.82 : x
  2. Step 2: Convert to fraction form
    19,132.92/28,715.16 = 9,779.82/x
  3. Step 3: Cross multiply
    19,132.92x = 28,715.16 × 9,779.82
  4. Step 4: Simplify right side
    19,132.92x = 280,829,096.07
  5. Step 5: Solve for x
    x = 280,829,096.07/19,132.92
  6. Step 6: Final answer
    x = 14,677.80

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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.