Home / 28,819.28-39,771.24-16,884.56

Finding the Fourth Proportional to 28,819.28, 39,771.24 and 16,884.56

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Solution

The fourth proportional to 28,819.28, 39,771.24 and 16,884.56 is: 23,301.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,819.28 : 39,771.24 = 16,884.56 : x
  2. Step 2: Convert to fraction form
    28,819.28/39,771.24 = 16,884.56/x
  3. Step 3: Cross multiply
    28,819.28x = 39,771.24 × 16,884.56
  4. Step 4: Simplify right side
    28,819.28x = 671,519,888.05
  5. Step 5: Solve for x
    x = 671,519,888.05/28,819.28
  6. Step 6: Final answer
    x = 23,301.06

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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.