Home / 25,615.80-38,420.19-6,896.70

Finding the Fourth Proportional to 25,615.80, 38,420.19 and 6,896.70

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Solution

The fourth proportional to 25,615.80, 38,420.19 and 6,896.70 is: 10,344.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,615.80 : 38,420.19 = 6,896.70 : x
  2. Step 2: Convert to fraction form
    25,615.80/38,420.19 = 6,896.70/x
  3. Step 3: Cross multiply
    25,615.80x = 38,420.19 × 6,896.70
  4. Step 4: Simplify right side
    25,615.80x = 264,972,524.37
  5. Step 5: Solve for x
    x = 264,972,524.37/25,615.80
  6. Step 6: Final answer
    x = 10,344.10

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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.