Home / 25,015.32-34,520.88-13,684.70

Finding the Fourth Proportional to 25,015.32, 34,520.88 and 13,684.70

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Solution

The fourth proportional to 25,015.32, 34,520.88 and 13,684.70 is: 18,884.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,015.32 : 34,520.88 = 13,684.70 : x
  2. Step 2: Convert to fraction form
    25,015.32/34,520.88 = 13,684.70/x
  3. Step 3: Cross multiply
    25,015.32x = 34,520.88 × 13,684.70
  4. Step 4: Simplify right side
    25,015.32x = 472,407,886.54
  5. Step 5: Solve for x
    x = 472,407,886.54/25,015.32
  6. Step 6: Final answer
    x = 18,884.74

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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.