Home / 20,408.04-30,590.19-7,256.07

Finding the Fourth Proportional to 20,408.04, 30,590.19 and 7,256.07

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Solution

The fourth proportional to 20,408.04, 30,590.19 and 7,256.07 is: 10,876.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,408.04 : 30,590.19 = 7,256.07 : x
  2. Step 2: Convert to fraction form
    20,408.04/30,590.19 = 7,256.07/x
  3. Step 3: Cross multiply
    20,408.04x = 30,590.19 × 7,256.07
  4. Step 4: Simplify right side
    20,408.04x = 221,964,559.95
  5. Step 5: Solve for x
    x = 221,964,559.95/20,408.04
  6. Step 6: Final answer
    x = 10,876.33

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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.