Home / 28,840.38-43,287.30-17,768.70

Finding the Fourth Proportional to 28,840.38, 43,287.30 and 17,768.70

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Solution

The fourth proportional to 28,840.38, 43,287.30 and 17,768.70 is: 26,669.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,840.38 : 43,287.30 = 17,768.70 : x
  2. Step 2: Convert to fraction form
    28,840.38/43,287.30 = 17,768.70/x
  3. Step 3: Cross multiply
    28,840.38x = 43,287.30 × 17,768.70
  4. Step 4: Simplify right side
    28,840.38x = 769,159,047.51
  5. Step 5: Solve for x
    x = 769,159,047.51/28,840.38
  6. Step 6: Final answer
    x = 26,669.52

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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.