Home / 28,513.57-42,777.32-20,096.49

Finding the Fourth Proportional to 28,513.57, 42,777.32 and 20,096.49

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Solution

The fourth proportional to 28,513.57, 42,777.32 and 20,096.49 is: 30,149.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,513.57 : 42,777.32 = 20,096.49 : x
  2. Step 2: Convert to fraction form
    28,513.57/42,777.32 = 20,096.49/x
  3. Step 3: Cross multiply
    28,513.57x = 42,777.32 × 20,096.49
  4. Step 4: Simplify right side
    28,513.57x = 859,673,669.24
  5. Step 5: Solve for x
    x = 859,673,669.24/28,513.57
  6. Step 6: Final answer
    x = 30,149.64

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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.