Home / 17,218.24-23,715.96-13,231.76

Finding the Fourth Proportional to 17,218.24, 23,715.96 and 13,231.76

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Solution

The fourth proportional to 17,218.24, 23,715.96 and 13,231.76 is: 18,225.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,218.24 : 23,715.96 = 13,231.76 : x
  2. Step 2: Convert to fraction form
    17,218.24/23,715.96 = 13,231.76/x
  3. Step 3: Cross multiply
    17,218.24x = 23,715.96 × 13,231.76
  4. Step 4: Simplify right side
    17,218.24x = 313,803,890.89
  5. Step 5: Solve for x
    x = 313,803,890.89/17,218.24
  6. Step 6: Final answer
    x = 18,225.09

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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.