Home / 16,990.56-23,458.40-13,004.56

Finding the Fourth Proportional to 16,990.56, 23,458.40 and 13,004.56

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Solution

The fourth proportional to 16,990.56, 23,458.40 and 13,004.56 is: 17,955.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,990.56 : 23,458.40 = 13,004.56 : x
  2. Step 2: Convert to fraction form
    16,990.56/23,458.40 = 13,004.56/x
  3. Step 3: Cross multiply
    16,990.56x = 23,458.40 × 13,004.56
  4. Step 4: Simplify right side
    16,990.56x = 305,066,170.30
  5. Step 5: Solve for x
    x = 305,066,170.30/16,990.56
  6. Step 6: Final answer
    x = 17,955.04

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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.