Home / 28,798.88-39,757.20-18,199.52

Finding the Fourth Proportional to 28,798.88, 39,757.20 and 18,199.52

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Solution

The fourth proportional to 28,798.88, 39,757.20 and 18,199.52 is: 25,124.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,798.88 : 39,757.20 = 18,199.52 : x
  2. Step 2: Convert to fraction form
    28,798.88/39,757.20 = 18,199.52/x
  3. Step 3: Cross multiply
    28,798.88x = 39,757.20 × 18,199.52
  4. Step 4: Simplify right side
    28,798.88x = 723,561,956.54
  5. Step 5: Solve for x
    x = 723,561,956.54/28,798.88
  6. Step 6: Final answer
    x = 25,124.66

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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.