Home / 26,986.80-40,403.16-21,448.02

Finding the Fourth Proportional to 26,986.80, 40,403.16 and 21,448.02

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Solution

The fourth proportional to 26,986.80, 40,403.16 and 21,448.02 is: 32,110.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,986.80 : 40,403.16 = 21,448.02 : x
  2. Step 2: Convert to fraction form
    26,986.80/40,403.16 = 21,448.02/x
  3. Step 3: Cross multiply
    26,986.80x = 40,403.16 × 21,448.02
  4. Step 4: Simplify right side
    26,986.80x = 866,567,783.74
  5. Step 5: Solve for x
    x = 866,567,783.74/26,986.80
  6. Step 6: Final answer
    x = 32,110.80

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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.