Home / 28,571.33-42,861.56-9,856.08

Finding the Fourth Proportional to 28,571.33, 42,861.56 and 9,856.08

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Solution

The fourth proportional to 28,571.33, 42,861.56 and 9,856.08 is: 14,785.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,571.33 : 42,861.56 = 9,856.08 : x
  2. Step 2: Convert to fraction form
    28,571.33/42,861.56 = 9,856.08/x
  3. Step 3: Cross multiply
    28,571.33x = 42,861.56 × 9,856.08
  4. Step 4: Simplify right side
    28,571.33x = 422,446,915.00
  5. Step 5: Solve for x
    x = 422,446,915.00/28,571.33
  6. Step 6: Final answer
    x = 14,785.69

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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.