Home / 16,990.08-25,439.44-13,857.16

Finding the Fourth Proportional to 16,990.08, 25,439.44 and 13,857.16

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Solution

The fourth proportional to 16,990.08, 25,439.44 and 13,857.16 is: 20,748.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,990.08 : 25,439.44 = 13,857.16 : x
  2. Step 2: Convert to fraction form
    16,990.08/25,439.44 = 13,857.16/x
  3. Step 3: Cross multiply
    16,990.08x = 25,439.44 × 13,857.16
  4. Step 4: Simplify right side
    16,990.08x = 352,518,390.39
  5. Step 5: Solve for x
    x = 352,518,390.39/16,990.08
  6. Step 6: Final answer
    x = 20,748.48

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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.