Home / 28,793.50-39,748.35-20,302.54

Finding the Fourth Proportional to 28,793.50, 39,748.35 and 20,302.54

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Solution

The fourth proportional to 28,793.50, 39,748.35 and 20,302.54 is: 28,026.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,793.50 : 39,748.35 = 20,302.54 : x
  2. Step 2: Convert to fraction form
    28,793.50/39,748.35 = 20,302.54/x
  3. Step 3: Cross multiply
    28,793.50x = 39,748.35 × 20,302.54
  4. Step 4: Simplify right side
    28,793.50x = 806,992,465.81
  5. Step 5: Solve for x
    x = 806,992,465.81/28,793.50
  6. Step 6: Final answer
    x = 28,026.90

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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.