Home / 27,313.99-37,690.69-20,147.80

Finding the Fourth Proportional to 27,313.99, 37,690.69 and 20,147.80

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Solution

The fourth proportional to 27,313.99, 37,690.69 and 20,147.80 is: 27,802.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,313.99 : 37,690.69 = 20,147.80 : x
  2. Step 2: Convert to fraction form
    27,313.99/37,690.69 = 20,147.80/x
  3. Step 3: Cross multiply
    27,313.99x = 37,690.69 × 20,147.80
  4. Step 4: Simplify right side
    27,313.99x = 759,384,483.98
  5. Step 5: Solve for x
    x = 759,384,483.98/27,313.99
  6. Step 6: Final answer
    x = 27,802.03

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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.