Home / 28,975.89-39,983.40-16,227.30

Finding the Fourth Proportional to 28,975.89, 39,983.40 and 16,227.30

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Solution

The fourth proportional to 28,975.89, 39,983.40 and 16,227.30 is: 22,391.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,975.89 : 39,983.40 = 16,227.30 : x
  2. Step 2: Convert to fraction form
    28,975.89/39,983.40 = 16,227.30/x
  3. Step 3: Cross multiply
    28,975.89x = 39,983.40 × 16,227.30
  4. Step 4: Simplify right side
    28,975.89x = 648,822,626.82
  5. Step 5: Solve for x
    x = 648,822,626.82/28,975.89
  6. Step 6: Final answer
    x = 22,391.81

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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.