Home / 21,003.32-31,524.48-10,622.36

Finding the Fourth Proportional to 21,003.32, 31,524.48 and 10,622.36

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Solution

The fourth proportional to 21,003.32, 31,524.48 and 10,622.36 is: 15,943.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,003.32 : 31,524.48 = 10,622.36 : x
  2. Step 2: Convert to fraction form
    21,003.32/31,524.48 = 10,622.36/x
  3. Step 3: Cross multiply
    21,003.32x = 31,524.48 × 10,622.36
  4. Step 4: Simplify right side
    21,003.32x = 334,864,375.37
  5. Step 5: Solve for x
    x = 334,864,375.37/21,003.32
  6. Step 6: Final answer
    x = 15,943.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.