Home / 20,123.13-30,181.26-5,333.55

Finding the Fourth Proportional to 20,123.13, 30,181.26 and 5,333.55

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Solution

The fourth proportional to 20,123.13, 30,181.26 and 5,333.55 is: 7,999.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,123.13 : 30,181.26 = 5,333.55 : x
  2. Step 2: Convert to fraction form
    20,123.13/30,181.26 = 5,333.55/x
  3. Step 3: Cross multiply
    20,123.13x = 30,181.26 × 5,333.55
  4. Step 4: Simplify right side
    20,123.13x = 160,973,259.27
  5. Step 5: Solve for x
    x = 160,973,259.27/20,123.13
  6. Step 6: Final answer
    x = 7,999.41

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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.