Home / 17,148.12-23,675.04-13,161.60

Finding the Fourth Proportional to 17,148.12, 23,675.04 and 13,161.60

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Solution

The fourth proportional to 17,148.12, 23,675.04 and 13,161.60 is: 18,171.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,148.12 : 23,675.04 = 13,161.60 : x
  2. Step 2: Convert to fraction form
    17,148.12/23,675.04 = 13,161.60/x
  3. Step 3: Cross multiply
    17,148.12x = 23,675.04 × 13,161.60
  4. Step 4: Simplify right side
    17,148.12x = 311,601,406.46
  5. Step 5: Solve for x
    x = 311,601,406.46/17,148.12
  6. Step 6: Final answer
    x = 18,171.17

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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.