Home / 21,712.65-29,976.93-16,667.22

Finding the Fourth Proportional to 21,712.65, 29,976.93 and 16,667.22

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Solution

The fourth proportional to 21,712.65, 29,976.93 and 16,667.22 is: 23,011.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,712.65 : 29,976.93 = 16,667.22 : x
  2. Step 2: Convert to fraction form
    21,712.65/29,976.93 = 16,667.22/x
  3. Step 3: Cross multiply
    21,712.65x = 29,976.93 × 16,667.22
  4. Step 4: Simplify right side
    21,712.65x = 499,632,087.23
  5. Step 5: Solve for x
    x = 499,632,087.23/21,712.65
  6. Step 6: Final answer
    x = 23,011.11

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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.