Home / 28,076.23-38,745.09-15,500.89

Finding the Fourth Proportional to 28,076.23, 38,745.09 and 15,500.89

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Solution

The fourth proportional to 28,076.23, 38,745.09 and 15,500.89 is: 21,391.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,076.23 : 38,745.09 = 15,500.89 : x
  2. Step 2: Convert to fraction form
    28,076.23/38,745.09 = 15,500.89/x
  3. Step 3: Cross multiply
    28,076.23x = 38,745.09 × 15,500.89
  4. Step 4: Simplify right side
    28,076.23x = 600,583,378.13
  5. Step 5: Solve for x
    x = 600,583,378.13/28,076.23
  6. Step 6: Final answer
    x = 21,391.17

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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.