Home / 26,947.78-40,420.80-7,225.30

Finding the Fourth Proportional to 26,947.78, 40,420.80 and 7,225.30

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Solution

The fourth proportional to 26,947.78, 40,420.80 and 7,225.30 is: 10,837.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,947.78 : 40,420.80 = 7,225.30 : x
  2. Step 2: Convert to fraction form
    26,947.78/40,420.80 = 7,225.30/x
  3. Step 3: Cross multiply
    26,947.78x = 40,420.80 × 7,225.30
  4. Step 4: Simplify right side
    26,947.78x = 292,052,406.24
  5. Step 5: Solve for x
    x = 292,052,406.24/26,947.78
  6. Step 6: Final answer
    x = 10,837.72

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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.