Home / 20,219.49-30,300.08-11,436.26

Finding the Fourth Proportional to 20,219.49, 30,300.08 and 11,436.26

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Solution

The fourth proportional to 20,219.49, 30,300.08 and 11,436.26 is: 17,137.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219.49 : 30,300.08 = 11,436.26 : x
  2. Step 2: Convert to fraction form
    20,219.49/30,300.08 = 11,436.26/x
  3. Step 3: Cross multiply
    20,219.49x = 30,300.08 × 11,436.26
  4. Step 4: Simplify right side
    20,219.49x = 346,519,384.22
  5. Step 5: Solve for x
    x = 346,519,384.22/20,219.49
  6. Step 6: Final answer
    x = 17,137.89

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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.