Home / 25,453.44-35,093.55-21,145.76

Finding the Fourth Proportional to 25,453.44, 35,093.55 and 21,145.76

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Solution

The fourth proportional to 25,453.44, 35,093.55 and 21,145.76 is: 29,154.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,453.44 : 35,093.55 = 21,145.76 : x
  2. Step 2: Convert to fraction form
    25,453.44/35,093.55 = 21,145.76/x
  3. Step 3: Cross multiply
    25,453.44x = 35,093.55 × 21,145.76
  4. Step 4: Simplify right side
    25,453.44x = 742,079,821.28
  5. Step 5: Solve for x
    x = 742,079,821.28/25,453.44
  6. Step 6: Final answer
    x = 29,154.40

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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.