Home / 19,840.48-27,370.37-11,881.15

Finding the Fourth Proportional to 19,840.48, 27,370.37 and 11,881.15

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Solution

The fourth proportional to 19,840.48, 27,370.37 and 11,881.15 is: 16,390.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,840.48 : 27,370.37 = 11,881.15 : x
  2. Step 2: Convert to fraction form
    19,840.48/27,370.37 = 11,881.15/x
  3. Step 3: Cross multiply
    19,840.48x = 27,370.37 × 11,881.15
  4. Step 4: Simplify right side
    19,840.48x = 325,191,432.80
  5. Step 5: Solve for x
    x = 325,191,432.80/19,840.48
  6. Step 6: Final answer
    x = 16,390.30

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