Home / 20,563.03-28,432.92-20,229.58

Finding the Fourth Proportional to 20,563.03, 28,432.92 and 20,229.58

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Solution

The fourth proportional to 20,563.03, 28,432.92 and 20,229.58 is: 27,971.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,563.03 : 28,432.92 = 20,229.58 : x
  2. Step 2: Convert to fraction form
    20,563.03/28,432.92 = 20,229.58/x
  3. Step 3: Cross multiply
    20,563.03x = 28,432.92 × 20,229.58
  4. Step 4: Simplify right side
    20,563.03x = 575,186,029.77
  5. Step 5: Solve for x
    x = 575,186,029.77/20,563.03
  6. Step 6: Final answer
    x = 27,971.85

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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.