Home / 28,135.28-38,824.08-15,559.76

Finding the Fourth Proportional to 28,135.28, 38,824.08 and 15,559.76

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Solution

The fourth proportional to 28,135.28, 38,824.08 and 15,559.76 is: 21,471.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,135.28 : 38,824.08 = 15,559.76 : x
  2. Step 2: Convert to fraction form
    28,135.28/38,824.08 = 15,559.76/x
  3. Step 3: Cross multiply
    28,135.28x = 38,824.08 × 15,559.76
  4. Step 4: Simplify right side
    28,135.28x = 604,093,367.02
  5. Step 5: Solve for x
    x = 604,093,367.02/28,135.28
  6. Step 6: Final answer
    x = 21,471.03

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.