Home / 16,780.70-23,147.16-12,071.36

Finding the Fourth Proportional to 16,780.70, 23,147.16 and 12,071.36

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Solution

The fourth proportional to 16,780.70, 23,147.16 and 12,071.36 is: 16,651.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,780.70 : 23,147.16 = 12,071.36 : x
  2. Step 2: Convert to fraction form
    16,780.70/23,147.16 = 12,071.36/x
  3. Step 3: Cross multiply
    16,780.70x = 23,147.16 × 12,071.36
  4. Step 4: Simplify right side
    16,780.70x = 279,417,701.34
  5. Step 5: Solve for x
    x = 279,417,701.34/16,780.70
  6. Step 6: Final answer
    x = 16,651.14

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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.