Home / 30,291.96-45,435.33-18,442.67

Finding the Fourth Proportional to 30,291.96, 45,435.33 and 18,442.67

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Solution

The fourth proportional to 30,291.96, 45,435.33 and 18,442.67 is: 27,662.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,291.96 : 45,435.33 = 18,442.67 : x
  2. Step 2: Convert to fraction form
    30,291.96/45,435.33 = 18,442.67/x
  3. Step 3: Cross multiply
    30,291.96x = 45,435.33 × 18,442.67
  4. Step 4: Simplify right side
    30,291.96x = 837,948,570.35
  5. Step 5: Solve for x
    x = 837,948,570.35/30,291.96
  6. Step 6: Final answer
    x = 27,662.41

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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.