Home / 20,526.21-28,328.94-11,574.09

Finding the Fourth Proportional to 20,526.21, 28,328.94 and 11,574.09

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Solution

The fourth proportional to 20,526.21, 28,328.94 and 11,574.09 is: 15,973.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,526.21 : 28,328.94 = 11,574.09 : x
  2. Step 2: Convert to fraction form
    20,526.21/28,328.94 = 11,574.09/x
  3. Step 3: Cross multiply
    20,526.21x = 28,328.94 × 11,574.09
  4. Step 4: Simplify right side
    20,526.21x = 327,881,701.16
  5. Step 5: Solve for x
    x = 327,881,701.16/20,526.21
  6. Step 6: Final answer
    x = 15,973.81

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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.