Home / 20,724.03-28,599.14-11,292.59

Finding the Fourth Proportional to 20,724.03, 28,599.14 and 11,292.59

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Solution

The fourth proportional to 20,724.03, 28,599.14 and 11,292.59 is: 15,583.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724.03 : 28,599.14 = 11,292.59 : x
  2. Step 2: Convert to fraction form
    20,724.03/28,599.14 = 11,292.59/x
  3. Step 3: Cross multiply
    20,724.03x = 28,599.14 × 11,292.59
  4. Step 4: Simplify right side
    20,724.03x = 322,958,362.37
  5. Step 5: Solve for x
    x = 322,958,362.37/20,724.03
  6. Step 6: Final answer
    x = 15,583.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.