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Finding the Fourth Proportional to 26,649, 36,779.94 and 15,477.48

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Solution

The fourth proportional to 26,649, 36,779.94 and 15,477.48 is: 21,361.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,649 : 36,779.94 = 15,477.48 : x
  2. Step 2: Convert to fraction form
    26,649/36,779.94 = 15,477.48/x
  3. Step 3: Cross multiply
    26,649x = 36,779.94 × 15,477.48
  4. Step 4: Simplify right side
    26,649x = 569,260,785.75
  5. Step 5: Solve for x
    x = 569,260,785.75/26,649
  6. Step 6: Final answer
    x = 21,361.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.