Home / 25,390.68-35,037-15,181.44

Finding the Fourth Proportional to 25,390.68, 35,037 and 15,181.44

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Solution

The fourth proportional to 25,390.68, 35,037 and 15,181.44 is: 20,949.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,390.68 : 35,037 = 15,181.44 : x
  2. Step 2: Convert to fraction form
    25,390.68/35,037 = 15,181.44/x
  3. Step 3: Cross multiply
    25,390.68x = 35,037 × 15,181.44
  4. Step 4: Simplify right side
    25,390.68x = 531,912,113.28
  5. Step 5: Solve for x
    x = 531,912,113.28/25,390.68
  6. Step 6: Final answer
    x = 20,949.11

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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.