Home / 28,921.59-43,343.19-13,106.88

Finding the Fourth Proportional to 28,921.59, 43,343.19 and 13,106.88

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Solution

The fourth proportional to 28,921.59, 43,343.19 and 13,106.88 is: 19,642.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,921.59 : 43,343.19 = 13,106.88 : x
  2. Step 2: Convert to fraction form
    28,921.59/43,343.19 = 13,106.88/x
  3. Step 3: Cross multiply
    28,921.59x = 43,343.19 × 13,106.88
  4. Step 4: Simplify right side
    28,921.59x = 568,093,990.15
  5. Step 5: Solve for x
    x = 568,093,990.15/28,921.59
  6. Step 6: Final answer
    x = 19,642.56

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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.