Home / 30,360.10-45,234.90-28,662.44

Finding the Fourth Proportional to 30,360.10, 45,234.90 and 28,662.44

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Solution

The fourth proportional to 30,360.10, 45,234.90 and 28,662.44 is: 42,705.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,360.10 : 45,234.90 = 28,662.44 : x
  2. Step 2: Convert to fraction form
    30,360.10/45,234.90 = 28,662.44/x
  3. Step 3: Cross multiply
    30,360.10x = 45,234.90 × 28,662.44
  4. Step 4: Simplify right side
    30,360.10x = 1,296,542,607.16
  5. Step 5: Solve for x
    x = 1,296,542,607.16/30,360.10
  6. Step 6: Final answer
    x = 42,705.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.