Home / 20,573.18-28,371.11-17,386.55

Finding the Fourth Proportional to 20,573.18, 28,371.11 and 17,386.55

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Solution

The fourth proportional to 20,573.18, 28,371.11 and 17,386.55 is: 23,976.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,573.18 : 28,371.11 = 17,386.55 : x
  2. Step 2: Convert to fraction form
    20,573.18/28,371.11 = 17,386.55/x
  3. Step 3: Cross multiply
    20,573.18x = 28,371.11 × 17,386.55
  4. Step 4: Simplify right side
    20,573.18x = 493,275,493.78
  5. Step 5: Solve for x
    x = 493,275,493.78/20,573.18
  6. Step 6: Final answer
    x = 23,976.63

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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.