Home / 28,964.78-43,407.87-12,303.92

Finding the Fourth Proportional to 28,964.78, 43,407.87 and 12,303.92

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Solution

The fourth proportional to 28,964.78, 43,407.87 and 12,303.92 is: 18,439.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,964.78 : 43,407.87 = 12,303.92 : x
  2. Step 2: Convert to fraction form
    28,964.78/43,407.87 = 12,303.92/x
  3. Step 3: Cross multiply
    28,964.78x = 43,407.87 × 12,303.92
  4. Step 4: Simplify right side
    28,964.78x = 534,086,959.85
  5. Step 5: Solve for x
    x = 534,086,959.85/28,964.78
  6. Step 6: Final answer
    x = 18,439.19

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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.