Home / 43,384.32-65,068.80-12,219.36

Finding the Fourth Proportional to 43,384.32, 65,068.80 and 12,219.36

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Solution

The fourth proportional to 43,384.32, 65,068.80 and 12,219.36 is: 18,326.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,384.32 : 65,068.80 = 12,219.36 : x
  2. Step 2: Convert to fraction form
    43,384.32/65,068.80 = 12,219.36/x
  3. Step 3: Cross multiply
    43,384.32x = 65,068.80 × 12,219.36
  4. Step 4: Simplify right side
    43,384.32x = 795,099,091.97
  5. Step 5: Solve for x
    x = 795,099,091.97/43,384.32
  6. Step 6: Final answer
    x = 18,326.88

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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.