Home / 43,153.03-64,730.36-11,989.09

Finding the Fourth Proportional to 43,153.03, 64,730.36 and 11,989.09

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Solution

The fourth proportional to 43,153.03, 64,730.36 and 11,989.09 is: 17,983.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,153.03 : 64,730.36 = 11,989.09 : x
  2. Step 2: Convert to fraction form
    43,153.03/64,730.36 = 11,989.09/x
  3. Step 3: Cross multiply
    43,153.03x = 64,730.36 × 11,989.09
  4. Step 4: Simplify right side
    43,153.03x = 776,058,155.22
  5. Step 5: Solve for x
    x = 776,058,155.22/43,153.03
  6. Step 6: Final answer
    x = 17,983.86

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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.