Home / 19,299.74-28,909.37-15,531.21

Finding the Fourth Proportional to 19,299.74, 28,909.37 and 15,531.21

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Solution

The fourth proportional to 19,299.74, 28,909.37 and 15,531.21 is: 23,264.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,299.74 : 28,909.37 = 15,531.21 : x
  2. Step 2: Convert to fraction form
    19,299.74/28,909.37 = 15,531.21/x
  3. Step 3: Cross multiply
    19,299.74x = 28,909.37 × 15,531.21
  4. Step 4: Simplify right side
    19,299.74x = 448,997,535.27
  5. Step 5: Solve for x
    x = 448,997,535.27/19,299.74
  6. Step 6: Final answer
    x = 23,264.44

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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.