Home / 28,891.20-43,347.12-11,373.60

Finding the Fourth Proportional to 28,891.20, 43,347.12 and 11,373.60

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Solution

The fourth proportional to 28,891.20, 43,347.12 and 11,373.60 is: 17,064.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,891.20 : 43,347.12 = 11,373.60 : x
  2. Step 2: Convert to fraction form
    28,891.20/43,347.12 = 11,373.60/x
  3. Step 3: Cross multiply
    28,891.20x = 43,347.12 × 11,373.60
  4. Step 4: Simplify right side
    28,891.20x = 493,012,804.03
  5. Step 5: Solve for x
    x = 493,012,804.03/28,891.20
  6. Step 6: Final answer
    x = 17,064.46

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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.