Home / 28,099.85-38,775.51-16,160.85

Finding the Fourth Proportional to 28,099.85, 38,775.51 and 16,160.85

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Solution

The fourth proportional to 28,099.85, 38,775.51 and 16,160.85 is: 22,300.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,099.85 : 38,775.51 = 16,160.85 : x
  2. Step 2: Convert to fraction form
    28,099.85/38,775.51 = 16,160.85/x
  3. Step 3: Cross multiply
    28,099.85x = 38,775.51 × 16,160.85
  4. Step 4: Simplify right side
    28,099.85x = 626,645,200.78
  5. Step 5: Solve for x
    x = 626,645,200.78/28,099.85
  6. Step 6: Final answer
    x = 22,300.66

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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.