Home / 42,829.37-64,250.21-13,249.51

Finding the Fourth Proportional to 42,829.37, 64,250.21 and 13,249.51

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Solution

The fourth proportional to 42,829.37, 64,250.21 and 13,249.51 is: 19,876.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,829.37 : 64,250.21 = 13,249.51 : x
  2. Step 2: Convert to fraction form
    42,829.37/64,250.21 = 13,249.51/x
  3. Step 3: Cross multiply
    42,829.37x = 64,250.21 × 13,249.51
  4. Step 4: Simplify right side
    42,829.37x = 851,283,943.45
  5. Step 5: Solve for x
    x = 851,283,943.45/42,829.37
  6. Step 6: Final answer
    x = 19,876.17

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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.