Home / 28,793.21-43,147.49-13,985.19

Finding the Fourth Proportional to 28,793.21, 43,147.49 and 13,985.19

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Solution

The fourth proportional to 28,793.21, 43,147.49 and 13,985.19 is: 20,957.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,793.21 : 43,147.49 = 13,985.19 : x
  2. Step 2: Convert to fraction form
    28,793.21/43,147.49 = 13,985.19/x
  3. Step 3: Cross multiply
    28,793.21x = 43,147.49 × 13,985.19
  4. Step 4: Simplify right side
    28,793.21x = 603,425,775.75
  5. Step 5: Solve for x
    x = 603,425,775.75/28,793.21
  6. Step 6: Final answer
    x = 20,957.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.