Home / 28,633.92-42,956.80-11,103.68

Finding the Fourth Proportional to 28,633.92, 42,956.80 and 11,103.68

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Solution

The fourth proportional to 28,633.92, 42,956.80 and 11,103.68 is: 16,657.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,633.92 : 42,956.80 = 11,103.68 : x
  2. Step 2: Convert to fraction form
    28,633.92/42,956.80 = 11,103.68/x
  3. Step 3: Cross multiply
    28,633.92x = 42,956.80 × 11,103.68
  4. Step 4: Simplify right side
    28,633.92x = 476,978,561.02
  5. Step 5: Solve for x
    x = 476,978,561.02/28,633.92
  6. Step 6: Final answer
    x = 16,657.82

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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.