Home / 26,445.64-39,662.28-7,721.76

Finding the Fourth Proportional to 26,445.64, 39,662.28 and 7,721.76

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Solution

The fourth proportional to 26,445.64, 39,662.28 and 7,721.76 is: 11,580.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,445.64 : 39,662.28 = 7,721.76 : x
  2. Step 2: Convert to fraction form
    26,445.64/39,662.28 = 7,721.76/x
  3. Step 3: Cross multiply
    26,445.64x = 39,662.28 × 7,721.76
  4. Step 4: Simplify right side
    26,445.64x = 306,262,607.21
  5. Step 5: Solve for x
    x = 306,262,607.21/26,445.64
  6. Step 6: Final answer
    x = 11,580.84

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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.