Home / 25,434.45-38,156.54-7,904.43

Finding the Fourth Proportional to 25,434.45, 38,156.54 and 7,904.43

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Solution

The fourth proportional to 25,434.45, 38,156.54 and 7,904.43 is: 11,858.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,434.45 : 38,156.54 = 7,904.43 : x
  2. Step 2: Convert to fraction form
    25,434.45/38,156.54 = 7,904.43/x
  3. Step 3: Cross multiply
    25,434.45x = 38,156.54 × 7,904.43
  4. Step 4: Simplify right side
    25,434.45x = 301,605,659.95
  5. Step 5: Solve for x
    x = 301,605,659.95/25,434.45
  6. Step 6: Final answer
    x = 11,858.16

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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.