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Finding the Fourth Proportional to 35,419.74, 48,879.74 and 19,287.64

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Solution

The fourth proportional to 35,419.74, 48,879.74 and 19,287.64 is: 26,617.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,419.74 : 48,879.74 = 19,287.64 : x
  2. Step 2: Convert to fraction form
    35,419.74/48,879.74 = 19,287.64/x
  3. Step 3: Cross multiply
    35,419.74x = 48,879.74 × 19,287.64
  4. Step 4: Simplify right side
    35,419.74x = 942,774,828.41
  5. Step 5: Solve for x
    x = 942,774,828.41/35,419.74
  6. Step 6: Final answer
    x = 26,617.21

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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.