Home / 21,995.33-30,353.71-11,923.93

Finding the Fourth Proportional to 21,995.33, 30,353.71 and 11,923.93

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Solution

The fourth proportional to 21,995.33, 30,353.71 and 11,923.93 is: 16,455.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,995.33 : 30,353.71 = 11,923.93 : x
  2. Step 2: Convert to fraction form
    21,995.33/30,353.71 = 11,923.93/x
  3. Step 3: Cross multiply
    21,995.33x = 30,353.71 × 11,923.93
  4. Step 4: Simplify right side
    21,995.33x = 361,935,513.28
  5. Step 5: Solve for x
    x = 361,935,513.28/21,995.33
  6. Step 6: Final answer
    x = 16,455.11

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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.