Home / 30,165.60-45,189.52-19,745.76

Finding the Fourth Proportional to 30,165.60, 45,189.52 and 19,745.76

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Solution

The fourth proportional to 30,165.60, 45,189.52 and 19,745.76 is: 29,580.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,165.60 : 45,189.52 = 19,745.76 : x
  2. Step 2: Convert to fraction form
    30,165.60/45,189.52 = 19,745.76/x
  3. Step 3: Cross multiply
    30,165.60x = 45,189.52 × 19,745.76
  4. Step 4: Simplify right side
    30,165.60x = 892,301,416.44
  5. Step 5: Solve for x
    x = 892,301,416.44/30,165.60
  6. Step 6: Final answer
    x = 29,580.10

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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.