Home / 22,291.74-30,762.90-13,339.62

Finding the Fourth Proportional to 22,291.74, 30,762.90 and 13,339.62

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Solution

The fourth proportional to 22,291.74, 30,762.90 and 13,339.62 is: 18,408.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,291.74 : 30,762.90 = 13,339.62 : x
  2. Step 2: Convert to fraction form
    22,291.74/30,762.90 = 13,339.62/x
  3. Step 3: Cross multiply
    22,291.74x = 30,762.90 × 13,339.62
  4. Step 4: Simplify right side
    22,291.74x = 410,365,396.10
  5. Step 5: Solve for x
    x = 410,365,396.10/22,291.74
  6. Step 6: Final answer
    x = 18,408.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.