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Finding the Fourth Proportional to 19,883.34, 27,439.35 and 10,931.22

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Solution

The fourth proportional to 19,883.34, 27,439.35 and 10,931.22 is: 15,085.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,883.34 : 27,439.35 = 10,931.22 : x
  2. Step 2: Convert to fraction form
    19,883.34/27,439.35 = 10,931.22/x
  3. Step 3: Cross multiply
    19,883.34x = 27,439.35 × 10,931.22
  4. Step 4: Simplify right side
    19,883.34x = 299,945,571.51
  5. Step 5: Solve for x
    x = 299,945,571.51/19,883.34
  6. Step 6: Final answer
    x = 15,085.27

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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.