Home / 25,980.22-38,948.46-10,389.34

Finding the Fourth Proportional to 25,980.22, 38,948.46 and 10,389.34

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Solution

The fourth proportional to 25,980.22, 38,948.46 and 10,389.34 is: 15,575.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,980.22 : 38,948.46 = 10,389.34 : x
  2. Step 2: Convert to fraction form
    25,980.22/38,948.46 = 10,389.34/x
  3. Step 3: Cross multiply
    25,980.22x = 38,948.46 × 10,389.34
  4. Step 4: Simplify right side
    25,980.22x = 404,648,793.42
  5. Step 5: Solve for x
    x = 404,648,793.42/25,980.22
  6. Step 6: Final answer
    x = 15,575.26

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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.