Home / 28,936-43,403.96-19,003.45

Finding the Fourth Proportional to 28,936, 43,403.96 and 19,003.45

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Solution

The fourth proportional to 28,936, 43,403.96 and 19,003.45 is: 28,505.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,936 : 43,403.96 = 19,003.45 : x
  2. Step 2: Convert to fraction form
    28,936/43,403.96 = 19,003.45/x
  3. Step 3: Cross multiply
    28,936x = 43,403.96 × 19,003.45
  4. Step 4: Simplify right side
    28,936x = 824,824,983.66
  5. Step 5: Solve for x
    x = 824,824,983.66/28,936
  6. Step 6: Final answer
    x = 28,505.15

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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.