Home / 21,995.37-30,353.70-13,044.57

Finding the Fourth Proportional to 21,995.37, 30,353.70 and 13,044.57

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Solution

The fourth proportional to 21,995.37, 30,353.70 and 13,044.57 is: 18,001.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,995.37 : 30,353.70 = 13,044.57 : x
  2. Step 2: Convert to fraction form
    21,995.37/30,353.70 = 13,044.57/x
  3. Step 3: Cross multiply
    21,995.37x = 30,353.70 × 13,044.57
  4. Step 4: Simplify right side
    21,995.37x = 395,950,964.41
  5. Step 5: Solve for x
    x = 395,950,964.41/21,995.37
  6. Step 6: Final answer
    x = 18,001.56

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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.