Home / 17,020.79-23,472.20-11,355.77

Finding the Fourth Proportional to 17,020.79, 23,472.20 and 11,355.77

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Solution

The fourth proportional to 17,020.79, 23,472.20 and 11,355.77 is: 15,659.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,020.79 : 23,472.20 = 11,355.77 : x
  2. Step 2: Convert to fraction form
    17,020.79/23,472.20 = 11,355.77/x
  3. Step 3: Cross multiply
    17,020.79x = 23,472.20 × 11,355.77
  4. Step 4: Simplify right side
    17,020.79x = 266,544,795.76
  5. Step 5: Solve for x
    x = 266,544,795.76/17,020.79
  6. Step 6: Final answer
    x = 15,659.96

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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.