Home / 20,602.50-28,426.36-11,649.82

Finding the Fourth Proportional to 20,602.50, 28,426.36 and 11,649.82

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Solution

The fourth proportional to 20,602.50, 28,426.36 and 11,649.82 is: 16,073.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,602.50 : 28,426.36 = 11,649.82 : x
  2. Step 2: Convert to fraction form
    20,602.50/28,426.36 = 11,649.82/x
  3. Step 3: Cross multiply
    20,602.50x = 28,426.36 × 11,649.82
  4. Step 4: Simplify right side
    20,602.50x = 331,161,977.26
  5. Step 5: Solve for x
    x = 331,161,977.26/20,602.50
  6. Step 6: Final answer
    x = 16,073.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.