Home / 28,876.05-39,847.68-16,130.70

Finding the Fourth Proportional to 28,876.05, 39,847.68 and 16,130.70

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Solution

The fourth proportional to 28,876.05, 39,847.68 and 16,130.70 is: 22,259.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,876.05 : 39,847.68 = 16,130.70 : x
  2. Step 2: Convert to fraction form
    28,876.05/39,847.68 = 16,130.70/x
  3. Step 3: Cross multiply
    28,876.05x = 39,847.68 × 16,130.70
  4. Step 4: Simplify right side
    28,876.05x = 642,770,971.78
  5. Step 5: Solve for x
    x = 642,770,971.78/28,876.05
  6. Step 6: Final answer
    x = 22,259.66

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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.