Home / 30,303.45-41,804.37-21,355.88

Finding the Fourth Proportional to 30,303.45, 41,804.37 and 21,355.88

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Solution

The fourth proportional to 30,303.45, 41,804.37 and 21,355.88 is: 29,460.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,303.45 : 41,804.37 = 21,355.88 : x
  2. Step 2: Convert to fraction form
    30,303.45/41,804.37 = 21,355.88/x
  3. Step 3: Cross multiply
    30,303.45x = 41,804.37 × 21,355.88
  4. Step 4: Simplify right side
    30,303.45x = 892,768,900.17
  5. Step 5: Solve for x
    x = 892,768,900.17/30,303.45
  6. Step 6: Final answer
    x = 29,460.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.