Home / 25,491.54-35,173.65-15,418.56

Finding the Fourth Proportional to 25,491.54, 35,173.65 and 15,418.56

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Solution

The fourth proportional to 25,491.54, 35,173.65 and 15,418.56 is: 21,274.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,491.54 : 35,173.65 = 15,418.56 : x
  2. Step 2: Convert to fraction form
    25,491.54/35,173.65 = 15,418.56/x
  3. Step 3: Cross multiply
    25,491.54x = 35,173.65 × 15,418.56
  4. Step 4: Simplify right side
    25,491.54x = 542,327,032.94
  5. Step 5: Solve for x
    x = 542,327,032.94/25,491.54
  6. Step 6: Final answer
    x = 21,274.79

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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.