Home / 19,054.40-28,569.60-7,968.80

Finding the Fourth Proportional to 19,054.40, 28,569.60 and 7,968.80

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Solution

The fourth proportional to 19,054.40, 28,569.60 and 7,968.80 is: 11,948.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,054.40 : 28,569.60 = 7,968.80 : x
  2. Step 2: Convert to fraction form
    19,054.40/28,569.60 = 7,968.80/x
  3. Step 3: Cross multiply
    19,054.40x = 28,569.60 × 7,968.80
  4. Step 4: Simplify right side
    19,054.40x = 227,665,428.48
  5. Step 5: Solve for x
    x = 227,665,428.48/19,054.40
  6. Step 6: Final answer
    x = 11,948.18

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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.