Home / 40,118.03-55,363.73-21,969.51

Finding the Fourth Proportional to 40,118.03, 55,363.73 and 21,969.51

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Solution

The fourth proportional to 40,118.03, 55,363.73 and 21,969.51 is: 30,318.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,118.03 : 55,363.73 = 21,969.51 : x
  2. Step 2: Convert to fraction form
    40,118.03/55,363.73 = 21,969.51/x
  3. Step 3: Cross multiply
    40,118.03x = 55,363.73 × 21,969.51
  4. Step 4: Simplify right side
    40,118.03x = 1,216,313,910.02
  5. Step 5: Solve for x
    x = 1,216,313,910.02/40,118.03
  6. Step 6: Final answer
    x = 30,318.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.