Home / 20,453.15-30,676.29-5,663.55

Finding the Fourth Proportional to 20,453.15, 30,676.29 and 5,663.55

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Solution

The fourth proportional to 20,453.15, 30,676.29 and 5,663.55 is: 8,494.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,453.15 : 30,676.29 = 5,663.55 : x
  2. Step 2: Convert to fraction form
    20,453.15/30,676.29 = 5,663.55/x
  3. Step 3: Cross multiply
    20,453.15x = 30,676.29 × 5,663.55
  4. Step 4: Simplify right side
    20,453.15x = 173,736,702.23
  5. Step 5: Solve for x
    x = 173,736,702.23/20,453.15
  6. Step 6: Final answer
    x = 8,494.38

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1.5x scale

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.