Home / 22,644.36-31,249.40-13,697.80

Finding the Fourth Proportional to 22,644.36, 31,249.40 and 13,697.80

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Solution

The fourth proportional to 22,644.36, 31,249.40 and 13,697.80 is: 18,903.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,644.36 : 31,249.40 = 13,697.80 : x
  2. Step 2: Convert to fraction form
    22,644.36/31,249.40 = 13,697.80/x
  3. Step 3: Cross multiply
    22,644.36x = 31,249.40 × 13,697.80
  4. Step 4: Simplify right side
    22,644.36x = 428,048,031.32
  5. Step 5: Solve for x
    x = 428,048,031.32/22,644.36
  6. Step 6: Final answer
    x = 18,903.07

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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.