Home / 28,224.78-42,336.69-6,877.56

Finding the Fourth Proportional to 28,224.78, 42,336.69 and 6,877.56

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Solution

The fourth proportional to 28,224.78, 42,336.69 and 6,877.56 is: 10,316.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,224.78 : 42,336.69 = 6,877.56 : x
  2. Step 2: Convert to fraction form
    28,224.78/42,336.69 = 6,877.56/x
  3. Step 3: Cross multiply
    28,224.78x = 42,336.69 × 6,877.56
  4. Step 4: Simplify right side
    28,224.78x = 291,173,125.68
  5. Step 5: Solve for x
    x = 291,173,125.68/28,224.78
  6. Step 6: Final answer
    x = 10,316.22

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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.