Home / 28,582.79-42,874.20-11,933.75

Finding the Fourth Proportional to 28,582.79, 42,874.20 and 11,933.75

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Solution

The fourth proportional to 28,582.79, 42,874.20 and 11,933.75 is: 17,900.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,582.79 : 42,874.20 = 11,933.75 : x
  2. Step 2: Convert to fraction form
    28,582.79/42,874.20 = 11,933.75/x
  3. Step 3: Cross multiply
    28,582.79x = 42,874.20 × 11,933.75
  4. Step 4: Simplify right side
    28,582.79x = 511,649,710.21
  5. Step 5: Solve for x
    x = 511,649,710.21/28,582.79
  6. Step 6: Final answer
    x = 17,900.62

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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.