Home / 28,668.63-43,003.40-10,899.56

Finding the Fourth Proportional to 28,668.63, 43,003.40 and 10,899.56

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Solution

The fourth proportional to 28,668.63, 43,003.40 and 10,899.56 is: 16,349.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,668.63 : 43,003.40 = 10,899.56 : x
  2. Step 2: Convert to fraction form
    28,668.63/43,003.40 = 10,899.56/x
  3. Step 3: Cross multiply
    28,668.63x = 43,003.40 × 10,899.56
  4. Step 4: Simplify right side
    28,668.63x = 468,718,138.50
  5. Step 5: Solve for x
    x = 468,718,138.50/28,668.63
  6. Step 6: Final answer
    x = 16,349.51

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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.