Home / 28,859.06-43,296.26-9,138.02

Finding the Fourth Proportional to 28,859.06, 43,296.26 and 9,138.02

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Solution

The fourth proportional to 28,859.06, 43,296.26 and 9,138.02 is: 13,709.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,859.06 : 43,296.26 = 9,138.02 : x
  2. Step 2: Convert to fraction form
    28,859.06/43,296.26 = 9,138.02/x
  3. Step 3: Cross multiply
    28,859.06x = 43,296.26 × 9,138.02
  4. Step 4: Simplify right side
    28,859.06x = 395,642,089.81
  5. Step 5: Solve for x
    x = 395,642,089.81/28,859.06
  6. Step 6: Final answer
    x = 13,709.46

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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.