Home / 18,956.11-28,431.69-5,628.84

Finding the Fourth Proportional to 18,956.11, 28,431.69 and 5,628.84

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Solution

The fourth proportional to 18,956.11, 28,431.69 and 5,628.84 is: 8,442.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,956.11 : 28,431.69 = 5,628.84 : x
  2. Step 2: Convert to fraction form
    18,956.11/28,431.69 = 5,628.84/x
  3. Step 3: Cross multiply
    18,956.11x = 28,431.69 × 5,628.84
  4. Step 4: Simplify right side
    18,956.11x = 160,037,291.78
  5. Step 5: Solve for x
    x = 160,037,291.78/18,956.11
  6. Step 6: Final answer
    x = 8,442.52

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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.