Home / 25,809.16-35,618.68-15,200.86

Finding the Fourth Proportional to 25,809.16, 35,618.68 and 15,200.86

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Solution

The fourth proportional to 25,809.16, 35,618.68 and 15,200.86 is: 20,978.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,809.16 : 35,618.68 = 15,200.86 : x
  2. Step 2: Convert to fraction form
    25,809.16/35,618.68 = 15,200.86/x
  3. Step 3: Cross multiply
    25,809.16x = 35,618.68 × 15,200.86
  4. Step 4: Simplify right side
    25,809.16x = 541,434,568.06
  5. Step 5: Solve for x
    x = 541,434,568.06/25,809.16
  6. Step 6: Final answer
    x = 20,978.39

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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.