Home / 38,515.60-57,773.40-18,806.80

Finding the Fourth Proportional to 38,515.60, 57,773.40 and 18,806.80

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Solution

The fourth proportional to 38,515.60, 57,773.40 and 18,806.80 is: 28,210.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,515.60 : 57,773.40 = 18,806.80 : x
  2. Step 2: Convert to fraction form
    38,515.60/57,773.40 = 18,806.80/x
  3. Step 3: Cross multiply
    38,515.60x = 57,773.40 × 18,806.80
  4. Step 4: Simplify right side
    38,515.60x = 1,086,532,779.12
  5. Step 5: Solve for x
    x = 1,086,532,779.12/38,515.60
  6. Step 6: Final answer
    x = 28,210.20

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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.