Home / 28,582.80-42,874.19-11,933.76

Finding the Fourth Proportional to 28,582.80, 42,874.19 and 11,933.76

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Solution

The fourth proportional to 28,582.80, 42,874.19 and 11,933.76 is: 17,900.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,582.80 : 42,874.19 = 11,933.76 : x
  2. Step 2: Convert to fraction form
    28,582.80/42,874.19 = 11,933.76/x
  3. Step 3: Cross multiply
    28,582.80x = 42,874.19 × 11,933.76
  4. Step 4: Simplify right side
    28,582.80x = 511,650,430.67
  5. Step 5: Solve for x
    x = 511,650,430.67/28,582.80
  6. Step 6: Final answer
    x = 17,900.64

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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.