Home / 28,955.10-43,453.41-12,326.79

Finding the Fourth Proportional to 28,955.10, 43,453.41 and 12,326.79

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Solution

The fourth proportional to 28,955.10, 43,453.41 and 12,326.79 is: 18,499.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,955.10 : 43,453.41 = 12,326.79 : x
  2. Step 2: Convert to fraction form
    28,955.10/43,453.41 = 12,326.79/x
  3. Step 3: Cross multiply
    28,955.10x = 43,453.41 × 12,326.79
  4. Step 4: Simplify right side
    28,955.10x = 535,641,059.85
  5. Step 5: Solve for x
    x = 535,641,059.85/28,955.10
  6. Step 6: Final answer
    x = 18,499.02

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1.5x scale

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.