Home / 28,470.08-42,687.44-11,841.76

Finding the Fourth Proportional to 28,470.08, 42,687.44 and 11,841.76

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Solution

The fourth proportional to 28,470.08, 42,687.44 and 11,841.76 is: 17,755.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,470.08 : 42,687.44 = 11,841.76 : x
  2. Step 2: Convert to fraction form
    28,470.08/42,687.44 = 11,841.76/x
  3. Step 3: Cross multiply
    28,470.08x = 42,687.44 × 11,841.76
  4. Step 4: Simplify right side
    28,470.08x = 505,494,419.49
  5. Step 5: Solve for x
    x = 505,494,419.49/28,470.08
  6. Step 6: Final answer
    x = 17,755.29

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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.