Home / 25,499.72-35,179.78-18,801.28

Finding the Fourth Proportional to 25,499.72, 35,179.78 and 18,801.28

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Solution

The fourth proportional to 25,499.72, 35,179.78 and 18,801.28 is: 25,938.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,499.72 : 35,179.78 = 18,801.28 : x
  2. Step 2: Convert to fraction form
    25,499.72/35,179.78 = 18,801.28/x
  3. Step 3: Cross multiply
    25,499.72x = 35,179.78 × 18,801.28
  4. Step 4: Simplify right side
    25,499.72x = 661,424,894.12
  5. Step 5: Solve for x
    x = 661,424,894.12/25,499.72
  6. Step 6: Final answer
    x = 25,938.52

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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.