Home / 28,918.60-43,329.30-19,052.80

Finding the Fourth Proportional to 28,918.60, 43,329.30 and 19,052.80

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Solution

The fourth proportional to 28,918.60, 43,329.30 and 19,052.80 is: 28,547.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,918.60 : 43,329.30 = 19,052.80 : x
  2. Step 2: Convert to fraction form
    28,918.60/43,329.30 = 19,052.80/x
  3. Step 3: Cross multiply
    28,918.60x = 43,329.30 × 19,052.80
  4. Step 4: Simplify right side
    28,918.60x = 825,544,487.04
  5. Step 5: Solve for x
    x = 825,544,487.04/28,918.60
  6. Step 6: Final answer
    x = 28,547.18

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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.