Home / 26,688.25-40,038.06-7,969.75

Finding the Fourth Proportional to 26,688.25, 40,038.06 and 7,969.75

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Solution

The fourth proportional to 26,688.25, 40,038.06 and 7,969.75 is: 11,956.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,688.25 : 40,038.06 = 7,969.75 : x
  2. Step 2: Convert to fraction form
    26,688.25/40,038.06 = 7,969.75/x
  3. Step 3: Cross multiply
    26,688.25x = 40,038.06 × 7,969.75
  4. Step 4: Simplify right side
    26,688.25x = 319,093,328.69
  5. Step 5: Solve for x
    x = 319,093,328.69/26,688.25
  6. Step 6: Final answer
    x = 11,956.32

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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.