Home / 28,194.08-42,296.70-12,611.84

Finding the Fourth Proportional to 28,194.08, 42,296.70 and 12,611.84

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Solution

The fourth proportional to 28,194.08, 42,296.70 and 12,611.84 is: 18,920.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,194.08 : 42,296.70 = 12,611.84 : x
  2. Step 2: Convert to fraction form
    28,194.08/42,296.70 = 12,611.84/x
  3. Step 3: Cross multiply
    28,194.08x = 42,296.70 × 12,611.84
  4. Step 4: Simplify right side
    28,194.08x = 533,439,212.93
  5. Step 5: Solve for x
    x = 533,439,212.93/28,194.08
  6. Step 6: Final answer
    x = 18,920.26

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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.