Home / 28,839.56-39,798.48-15,591.56

Finding the Fourth Proportional to 28,839.56, 39,798.48 and 15,591.56

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Solution

The fourth proportional to 28,839.56, 39,798.48 and 15,591.56 is: 21,516.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,839.56 : 39,798.48 = 15,591.56 : x
  2. Step 2: Convert to fraction form
    28,839.56/39,798.48 = 15,591.56/x
  3. Step 3: Cross multiply
    28,839.56x = 39,798.48 × 15,591.56
  4. Step 4: Simplify right side
    28,839.56x = 620,520,388.83
  5. Step 5: Solve for x
    x = 620,520,388.83/28,839.56
  6. Step 6: Final answer
    x = 21,516.29

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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.