Home / 28,914.87-43,322.76-19,409.40

Finding the Fourth Proportional to 28,914.87, 43,322.76 and 19,409.40

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Solution

The fourth proportional to 28,914.87, 43,322.76 and 19,409.40 is: 29,080.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,914.87 : 43,322.76 = 19,409.40 : x
  2. Step 2: Convert to fraction form
    28,914.87/43,322.76 = 19,409.40/x
  3. Step 3: Cross multiply
    28,914.87x = 43,322.76 × 19,409.40
  4. Step 4: Simplify right side
    28,914.87x = 840,868,683.39
  5. Step 5: Solve for x
    x = 840,868,683.39/28,914.87
  6. Step 6: Final answer
    x = 29,080.84

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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.