Home / 21,106.63-29,126.79-11,675.19

Finding the Fourth Proportional to 21,106.63, 29,126.79 and 11,675.19

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Solution

The fourth proportional to 21,106.63, 29,126.79 and 11,675.19 is: 16,111.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,106.63 : 29,126.79 = 11,675.19 : x
  2. Step 2: Convert to fraction form
    21,106.63/29,126.79 = 11,675.19/x
  3. Step 3: Cross multiply
    21,106.63x = 29,126.79 × 11,675.19
  4. Step 4: Simplify right side
    21,106.63x = 340,060,661.71
  5. Step 5: Solve for x
    x = 340,060,661.71/21,106.63
  6. Step 6: Final answer
    x = 16,111.56

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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.