Home / 19,711.51-29,567.90-8,612.53

Finding the Fourth Proportional to 19,711.51, 29,567.90 and 8,612.53

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Solution

The fourth proportional to 19,711.51, 29,567.90 and 8,612.53 is: 12,919.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,711.51 : 29,567.90 = 8,612.53 : x
  2. Step 2: Convert to fraction form
    19,711.51/29,567.90 = 8,612.53/x
  3. Step 3: Cross multiply
    19,711.51x = 29,567.90 × 8,612.53
  4. Step 4: Simplify right side
    19,711.51x = 254,654,382.72
  5. Step 5: Solve for x
    x = 254,654,382.72/19,711.51
  6. Step 6: Final answer
    x = 12,919.07

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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.