Home / 28,686.72-39,598.96-18,074.38

Finding the Fourth Proportional to 28,686.72, 39,598.96 and 18,074.38

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Solution

The fourth proportional to 28,686.72, 39,598.96 and 18,074.38 is: 24,949.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,686.72 : 39,598.96 = 18,074.38 : x
  2. Step 2: Convert to fraction form
    28,686.72/39,598.96 = 18,074.38/x
  3. Step 3: Cross multiply
    28,686.72x = 39,598.96 × 18,074.38
  4. Step 4: Simplify right side
    28,686.72x = 715,726,650.64
  5. Step 5: Solve for x
    x = 715,726,650.64/28,686.72
  6. Step 6: Final answer
    x = 24,949.76

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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.