Home / 20,240.76-27,916.47-13,169.46

Finding the Fourth Proportional to 20,240.76, 27,916.47 and 13,169.46

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Solution

The fourth proportional to 20,240.76, 27,916.47 and 13,169.46 is: 18,163.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,240.76 : 27,916.47 = 13,169.46 : x
  2. Step 2: Convert to fraction form
    20,240.76/27,916.47 = 13,169.46/x
  3. Step 3: Cross multiply
    20,240.76x = 27,916.47 × 13,169.46
  4. Step 4: Simplify right side
    20,240.76x = 367,644,835.01
  5. Step 5: Solve for x
    x = 367,644,835.01/20,240.76
  6. Step 6: Final answer
    x = 18,163.59

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1.5x scale

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.