Home / 25,513.44-38,255.76-7,978.56

Finding the Fourth Proportional to 25,513.44, 38,255.76 and 7,978.56

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Solution

The fourth proportional to 25,513.44, 38,255.76 and 7,978.56 is: 11,963.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,513.44 : 38,255.76 = 7,978.56 : x
  2. Step 2: Convert to fraction form
    25,513.44/38,255.76 = 7,978.56/x
  3. Step 3: Cross multiply
    25,513.44x = 38,255.76 × 7,978.56
  4. Step 4: Simplify right side
    25,513.44x = 305,225,876.51
  5. Step 5: Solve for x
    x = 305,225,876.51/25,513.44
  6. Step 6: Final answer
    x = 11,963.34

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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.