Home / 28,072.08-42,085.76-16,212.40

Finding the Fourth Proportional to 28,072.08, 42,085.76 and 16,212.40

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Solution

The fourth proportional to 28,072.08, 42,085.76 and 16,212.40 is: 24,305.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,072.08 : 42,085.76 = 16,212.40 : x
  2. Step 2: Convert to fraction form
    28,072.08/42,085.76 = 16,212.40/x
  3. Step 3: Cross multiply
    28,072.08x = 42,085.76 × 16,212.40
  4. Step 4: Simplify right side
    28,072.08x = 682,311,175.42
  5. Step 5: Solve for x
    x = 682,311,175.42/28,072.08
  6. Step 6: Final answer
    x = 24,305.69

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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.