Home / 43,303.12-64,958.83-12,138.28

Finding the Fourth Proportional to 43,303.12, 64,958.83 and 12,138.28

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Solution

The fourth proportional to 43,303.12, 64,958.83 and 12,138.28 is: 18,208.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,303.12 : 64,958.83 = 12,138.28 : x
  2. Step 2: Convert to fraction form
    43,303.12/64,958.83 = 12,138.28/x
  3. Step 3: Cross multiply
    43,303.12x = 64,958.83 × 12,138.28
  4. Step 4: Simplify right side
    43,303.12x = 788,488,467.01
  5. Step 5: Solve for x
    x = 788,488,467.01/43,303.12
  6. Step 6: Final answer
    x = 18,208.58

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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.