Home / 30,599.25-45,867.30-12,840.21

Finding the Fourth Proportional to 30,599.25, 45,867.30 and 12,840.21

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Solution

The fourth proportional to 30,599.25, 45,867.30 and 12,840.21 is: 19,247.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,599.25 : 45,867.30 = 12,840.21 : x
  2. Step 2: Convert to fraction form
    30,599.25/45,867.30 = 12,840.21/x
  3. Step 3: Cross multiply
    30,599.25x = 45,867.30 × 12,840.21
  4. Step 4: Simplify right side
    30,599.25x = 588,945,764.13
  5. Step 5: Solve for x
    x = 588,945,764.13/30,599.25
  6. Step 6: Final answer
    x = 19,247.07

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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.