Home / 38,157.70-57,236.28-11,862.40

Finding the Fourth Proportional to 38,157.70, 57,236.28 and 11,862.40

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Solution

The fourth proportional to 38,157.70, 57,236.28 and 11,862.40 is: 17,793.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,157.70 : 57,236.28 = 11,862.40 : x
  2. Step 2: Convert to fraction form
    38,157.70/57,236.28 = 11,862.40/x
  3. Step 3: Cross multiply
    38,157.70x = 57,236.28 × 11,862.40
  4. Step 4: Simplify right side
    38,157.70x = 678,959,647.87
  5. Step 5: Solve for x
    x = 678,959,647.87/38,157.70
  6. Step 6: Final answer
    x = 17,793.52

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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.