Home / 25,896.18-38,760.72-13,398.99

Finding the Fourth Proportional to 25,896.18, 38,760.72 and 13,398.99

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Solution

The fourth proportional to 25,896.18, 38,760.72 and 13,398.99 is: 20,055.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,896.18 : 38,760.72 = 13,398.99 : x
  2. Step 2: Convert to fraction form
    25,896.18/38,760.72 = 13,398.99/x
  3. Step 3: Cross multiply
    25,896.18x = 38,760.72 × 13,398.99
  4. Step 4: Simplify right side
    25,896.18x = 519,354,499.67
  5. Step 5: Solve for x
    x = 519,354,499.67/25,896.18
  6. Step 6: Final answer
    x = 20,055.26

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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.