Home / 18,820.83-25,972.57-10,322.78

Finding the Fourth Proportional to 18,820.83, 25,972.57 and 10,322.78

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Solution

The fourth proportional to 18,820.83, 25,972.57 and 10,322.78 is: 14,245.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,820.83 : 25,972.57 = 10,322.78 : x
  2. Step 2: Convert to fraction form
    18,820.83/25,972.57 = 10,322.78/x
  3. Step 3: Cross multiply
    18,820.83x = 25,972.57 × 10,322.78
  4. Step 4: Simplify right side
    18,820.83x = 268,108,944.67
  5. Step 5: Solve for x
    x = 268,108,944.67/18,820.83
  6. Step 6: Final answer
    x = 14,245.33

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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.