Home / 20,826.68-28,740.74-11,395.22

Finding the Fourth Proportional to 20,826.68, 28,740.74 and 11,395.22

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Solution

The fourth proportional to 20,826.68, 28,740.74 and 11,395.22 is: 15,725.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,826.68 : 28,740.74 = 11,395.22 : x
  2. Step 2: Convert to fraction form
    20,826.68/28,740.74 = 11,395.22/x
  3. Step 3: Cross multiply
    20,826.68x = 28,740.74 × 11,395.22
  4. Step 4: Simplify right side
    20,826.68x = 327,506,854.58
  5. Step 5: Solve for x
    x = 327,506,854.58/20,826.68
  6. Step 6: Final answer
    x = 15,725.35

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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.