Home / 25,189.75-34,761.85-13,859.00

Finding the Fourth Proportional to 25,189.75, 34,761.85 and 13,859.00

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Solution

The fourth proportional to 25,189.75, 34,761.85 and 13,859.00 is: 19,125.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,189.75 : 34,761.85 = 13,859.00 : x
  2. Step 2: Convert to fraction form
    25,189.75/34,761.85 = 13,859.00/x
  3. Step 3: Cross multiply
    25,189.75x = 34,761.85 × 13,859.00
  4. Step 4: Simplify right side
    25,189.75x = 481,764,270.69
  5. Step 5: Solve for x
    x = 481,764,270.69/25,189.75
  6. Step 6: Final answer
    x = 19,125.41

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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.