Home / 28,151.54-38,847.09-15,576.50

Finding the Fourth Proportional to 28,151.54, 38,847.09 and 15,576.50

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Solution

The fourth proportional to 28,151.54, 38,847.09 and 15,576.50 is: 21,494.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,151.54 : 38,847.09 = 15,576.50 : x
  2. Step 2: Convert to fraction form
    28,151.54/38,847.09 = 15,576.50/x
  3. Step 3: Cross multiply
    28,151.54x = 38,847.09 × 15,576.50
  4. Step 4: Simplify right side
    28,151.54x = 605,101,697.39
  5. Step 5: Solve for x
    x = 605,101,697.39/28,151.54
  6. Step 6: Final answer
    x = 21,494.44

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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.