Home / 30,345.06-45,515.34-11,626.80

Finding the Fourth Proportional to 30,345.06, 45,515.34 and 11,626.80

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Solution

The fourth proportional to 30,345.06, 45,515.34 and 11,626.80 is: 17,439.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,345.06 : 45,515.34 = 11,626.80 : x
  2. Step 2: Convert to fraction form
    30,345.06/45,515.34 = 11,626.80/x
  3. Step 3: Cross multiply
    30,345.06x = 45,515.34 × 11,626.80
  4. Step 4: Simplify right side
    30,345.06x = 529,197,755.11
  5. Step 5: Solve for x
    x = 529,197,755.11/30,345.06
  6. Step 6: Final answer
    x = 17,439.34

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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.