Home / 20,529.70-30,804.27-11,772.02

Finding the Fourth Proportional to 20,529.70, 30,804.27 and 11,772.02

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Solution

The fourth proportional to 20,529.70, 30,804.27 and 11,772.02 is: 17,663.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,529.70 : 30,804.27 = 11,772.02 : x
  2. Step 2: Convert to fraction form
    20,529.70/30,804.27 = 11,772.02/x
  3. Step 3: Cross multiply
    20,529.70x = 30,804.27 × 11,772.02
  4. Step 4: Simplify right side
    20,529.70x = 362,628,482.53
  5. Step 5: Solve for x
    x = 362,628,482.53/20,529.70
  6. Step 6: Final answer
    x = 17,663.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.