Home / 37,619.04-51,918-20,855.28

Finding the Fourth Proportional to 37,619.04, 51,918 and 20,855.28

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Solution

The fourth proportional to 37,619.04, 51,918 and 20,855.28 is: 28,782.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,619.04 : 51,918 = 20,855.28 : x
  2. Step 2: Convert to fraction form
    37,619.04/51,918 = 20,855.28/x
  3. Step 3: Cross multiply
    37,619.04x = 51,918 × 20,855.28
  4. Step 4: Simplify right side
    37,619.04x = 1,082,764,427.04
  5. Step 5: Solve for x
    x = 1,082,764,427.04/37,619.04
  6. Step 6: Final answer
    x = 28,782.35

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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.