Home / 26,907.81-40,330.72-13,392.15

Finding the Fourth Proportional to 26,907.81, 40,330.72 and 13,392.15

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Solution

The fourth proportional to 26,907.81, 40,330.72 and 13,392.15 is: 20,072.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,907.81 : 40,330.72 = 13,392.15 : x
  2. Step 2: Convert to fraction form
    26,907.81/40,330.72 = 13,392.15/x
  3. Step 3: Cross multiply
    26,907.81x = 40,330.72 × 13,392.15
  4. Step 4: Simplify right side
    26,907.81x = 540,115,051.85
  5. Step 5: Solve for x
    x = 540,115,051.85/26,907.81
  6. Step 6: Final answer
    x = 20,072.80

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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.