Home / 26,690.76-40,041.81-7,972.26

Finding the Fourth Proportional to 26,690.76, 40,041.81 and 7,972.26

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Solution

The fourth proportional to 26,690.76, 40,041.81 and 7,972.26 is: 11,960.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,690.76 : 40,041.81 = 7,972.26 : x
  2. Step 2: Convert to fraction form
    26,690.76/40,041.81 = 7,972.26/x
  3. Step 3: Cross multiply
    26,690.76x = 40,041.81 × 7,972.26
  4. Step 4: Simplify right side
    26,690.76x = 319,223,720.19
  5. Step 5: Solve for x
    x = 319,223,720.19/26,690.76
  6. Step 6: Final answer
    x = 11,960.08

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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.