Home / 28,793.67-39,737.70-16,220.85

Finding the Fourth Proportional to 28,793.67, 39,737.70 and 16,220.85

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Solution

The fourth proportional to 28,793.67, 39,737.70 and 16,220.85 is: 22,386.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,793.67 : 39,737.70 = 16,220.85 : x
  2. Step 2: Convert to fraction form
    28,793.67/39,737.70 = 16,220.85/x
  3. Step 3: Cross multiply
    28,793.67x = 39,737.70 × 16,220.85
  4. Step 4: Simplify right side
    28,793.67x = 644,579,271.05
  5. Step 5: Solve for x
    x = 644,579,271.05/28,793.67
  6. Step 6: Final answer
    x = 22,386.14

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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.