Home / 28,715.73-39,627.70-16,140.48

Finding the Fourth Proportional to 28,715.73, 39,627.70 and 16,140.48

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Solution

The fourth proportional to 28,715.73, 39,627.70 and 16,140.48 is: 22,273.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,715.73 : 39,627.70 = 16,140.48 : x
  2. Step 2: Convert to fraction form
    28,715.73/39,627.70 = 16,140.48/x
  3. Step 3: Cross multiply
    28,715.73x = 39,627.70 × 16,140.48
  4. Step 4: Simplify right side
    28,715.73x = 639,610,099.30
  5. Step 5: Solve for x
    x = 639,610,099.30/28,715.73
  6. Step 6: Final answer
    x = 22,273.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.