Home / 26,669.80-40,004.70-9,140.20

Finding the Fourth Proportional to 26,669.80, 40,004.70 and 9,140.20

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Solution

The fourth proportional to 26,669.80, 40,004.70 and 9,140.20 is: 13,710.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,669.80 : 40,004.70 = 9,140.20 : x
  2. Step 2: Convert to fraction form
    26,669.80/40,004.70 = 9,140.20/x
  3. Step 3: Cross multiply
    26,669.80x = 40,004.70 × 9,140.20
  4. Step 4: Simplify right side
    26,669.80x = 365,650,958.94
  5. Step 5: Solve for x
    x = 365,650,958.94/26,669.80
  6. Step 6: Final answer
    x = 13,710.30

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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.