Home / 16,991.08-25,440.94-13,858.16

Finding the Fourth Proportional to 16,991.08, 25,440.94 and 13,858.16

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Solution

The fourth proportional to 16,991.08, 25,440.94 and 13,858.16 is: 20,749.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,991.08 : 25,440.94 = 13,858.16 : x
  2. Step 2: Convert to fraction form
    16,991.08/25,440.94 = 13,858.16/x
  3. Step 3: Cross multiply
    16,991.08x = 25,440.94 × 13,858.16
  4. Step 4: Simplify right side
    16,991.08x = 352,564,617.07
  5. Step 5: Solve for x
    x = 352,564,617.07/16,991.08
  6. Step 6: Final answer
    x = 20,749.98

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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.