Home / 18,970.07-28,452.60-5,821.34

Finding the Fourth Proportional to 18,970.07, 28,452.60 and 5,821.34

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Solution

The fourth proportional to 18,970.07, 28,452.60 and 5,821.34 is: 8,731.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,970.07 : 28,452.60 = 5,821.34 : x
  2. Step 2: Convert to fraction form
    18,970.07/28,452.60 = 5,821.34/x
  3. Step 3: Cross multiply
    18,970.07x = 28,452.60 × 5,821.34
  4. Step 4: Simplify right side
    18,970.07x = 165,632,116.22
  5. Step 5: Solve for x
    x = 165,632,116.22/18,970.07
  6. Step 6: Final answer
    x = 8,731.24

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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.