Home / 17,078.32-25,621.40-5,391.20

Finding the Fourth Proportional to 17,078.32, 25,621.40 and 5,391.20

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Solution

The fourth proportional to 17,078.32, 25,621.40 and 5,391.20 is: 8,088.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,078.32 : 25,621.40 = 5,391.20 : x
  2. Step 2: Convert to fraction form
    17,078.32/25,621.40 = 5,391.20/x
  3. Step 3: Cross multiply
    17,078.32x = 25,621.40 × 5,391.20
  4. Step 4: Simplify right side
    17,078.32x = 138,130,091.68
  5. Step 5: Solve for x
    x = 138,130,091.68/17,078.32
  6. Step 6: Final answer
    x = 8,088.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.