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Finding the Fourth Proportional to 17,485.11, 24,129.59 and 9,931.23

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Solution

The fourth proportional to 17,485.11, 24,129.59 and 9,931.23 is: 13,705.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,485.11 : 24,129.59 = 9,931.23 : x
  2. Step 2: Convert to fraction form
    17,485.11/24,129.59 = 9,931.23/x
  3. Step 3: Cross multiply
    17,485.11x = 24,129.59 × 9,931.23
  4. Step 4: Simplify right side
    17,485.11x = 239,636,458.44
  5. Step 5: Solve for x
    x = 239,636,458.44/17,485.11
  6. Step 6: Final answer
    x = 13,705.17

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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.