Home / 38,140.32-52,632.24-20,912.52

Finding the Fourth Proportional to 38,140.32, 52,632.24 and 20,912.52

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Solution

The fourth proportional to 38,140.32, 52,632.24 and 20,912.52 is: 28,858.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,140.32 : 52,632.24 = 20,912.52 : x
  2. Step 2: Convert to fraction form
    38,140.32/52,632.24 = 20,912.52/x
  3. Step 3: Cross multiply
    38,140.32x = 52,632.24 × 20,912.52
  4. Step 4: Simplify right side
    38,140.32x = 1,100,672,771.64
  5. Step 5: Solve for x
    x = 1,100,672,771.64/38,140.32
  6. Step 6: Final answer
    x = 28,858.51

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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.