Home / 33,135.10-45,702.83-20,371.56

Finding the Fourth Proportional to 33,135.10, 45,702.83 and 20,371.56

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Solution

The fourth proportional to 33,135.10, 45,702.83 and 20,371.56 is: 28,098.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,135.10 : 45,702.83 = 20,371.56 : x
  2. Step 2: Convert to fraction form
    33,135.10/45,702.83 = 20,371.56/x
  3. Step 3: Cross multiply
    33,135.10x = 45,702.83 × 20,371.56
  4. Step 4: Simplify right side
    33,135.10x = 931,038,144.41
  5. Step 5: Solve for x
    x = 931,038,144.41/33,135.10
  6. Step 6: Final answer
    x = 28,098.24

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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.