Home / 26,907.90-40,349.70-12,109.20

Finding the Fourth Proportional to 26,907.90, 40,349.70 and 12,109.20

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Solution

The fourth proportional to 26,907.90, 40,349.70 and 12,109.20 is: 18,158.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,907.90 : 40,349.70 = 12,109.20 : x
  2. Step 2: Convert to fraction form
    26,907.90/40,349.70 = 12,109.20/x
  3. Step 3: Cross multiply
    26,907.90x = 40,349.70 × 12,109.20
  4. Step 4: Simplify right side
    26,907.90x = 488,602,587.24
  5. Step 5: Solve for x
    x = 488,602,587.24/26,907.90
  6. Step 6: Final answer
    x = 18,158.33

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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.