Home / 19,313.13-28,949.73-10,975.20

Finding the Fourth Proportional to 19,313.13, 28,949.73 and 10,975.20

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Solution

The fourth proportional to 19,313.13, 28,949.73 and 10,975.20 is: 16,451.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,313.13 : 28,949.73 = 10,975.20 : x
  2. Step 2: Convert to fraction form
    19,313.13/28,949.73 = 10,975.20/x
  3. Step 3: Cross multiply
    19,313.13x = 28,949.73 × 10,975.20
  4. Step 4: Simplify right side
    19,313.13x = 317,728,877.07
  5. Step 5: Solve for x
    x = 317,728,877.07/19,313.13
  6. Step 6: Final answer
    x = 16,451.44

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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.