Home / 38,120.55-57,126.34-21,445.75

Finding the Fourth Proportional to 38,120.55, 57,126.34 and 21,445.75

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Solution

The fourth proportional to 38,120.55, 57,126.34 and 21,445.75 is: 32,137.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,120.55 : 57,126.34 = 21,445.75 : x
  2. Step 2: Convert to fraction form
    38,120.55/57,126.34 = 21,445.75/x
  3. Step 3: Cross multiply
    38,120.55x = 57,126.34 × 21,445.75
  4. Step 4: Simplify right side
    38,120.55x = 1,225,117,206.06
  5. Step 5: Solve for x
    x = 1,225,117,206.06/38,120.55
  6. Step 6: Final answer
    x = 32,137.97

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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.