Home / 20,284.48-27,995.75-12,323.80

Finding the Fourth Proportional to 20,284.48, 27,995.75 and 12,323.80

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Solution

The fourth proportional to 20,284.48, 27,995.75 and 12,323.80 is: 17,008.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,284.48 : 27,995.75 = 12,323.80 : x
  2. Step 2: Convert to fraction form
    20,284.48/27,995.75 = 12,323.80/x
  3. Step 3: Cross multiply
    20,284.48x = 27,995.75 × 12,323.80
  4. Step 4: Simplify right side
    20,284.48x = 345,014,023.85
  5. Step 5: Solve for x
    x = 345,014,023.85/20,284.48
  6. Step 6: Final answer
    x = 17,008.77

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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.