Home / 28,446.67-42,651.69-11,818.18

Finding the Fourth Proportional to 28,446.67, 42,651.69 and 11,818.18

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Solution

The fourth proportional to 28,446.67, 42,651.69 and 11,818.18 is: 17,719.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,446.67 : 42,651.69 = 11,818.18 : x
  2. Step 2: Convert to fraction form
    28,446.67/42,651.69 = 11,818.18/x
  3. Step 3: Cross multiply
    28,446.67x = 42,651.69 × 11,818.18
  4. Step 4: Simplify right side
    28,446.67x = 504,065,349.72
  5. Step 5: Solve for x
    x = 504,065,349.72/28,446.67
  6. Step 6: Final answer
    x = 17,719.66

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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.