Home / 20,284.06-30,428.52-7,801.18

Finding the Fourth Proportional to 20,284.06, 30,428.52 and 7,801.18

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Solution

The fourth proportional to 20,284.06, 30,428.52 and 7,801.18 is: 11,702.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,284.06 : 30,428.52 = 7,801.18 : x
  2. Step 2: Convert to fraction form
    20,284.06/30,428.52 = 7,801.18/x
  3. Step 3: Cross multiply
    20,284.06x = 30,428.52 × 7,801.18
  4. Step 4: Simplify right side
    20,284.06x = 237,378,361.65
  5. Step 5: Solve for x
    x = 237,378,361.65/20,284.06
  6. Step 6: Final answer
    x = 11,702.70

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1.5x scale

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.