Home / 22,027.58-30,382.34-15,556.80

Finding the Fourth Proportional to 22,027.58, 30,382.34 and 15,556.80

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Solution

The fourth proportional to 22,027.58, 30,382.34 and 15,556.80 is: 21,457.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,027.58 : 30,382.34 = 15,556.80 : x
  2. Step 2: Convert to fraction form
    22,027.58/30,382.34 = 15,556.80/x
  3. Step 3: Cross multiply
    22,027.58x = 30,382.34 × 15,556.80
  4. Step 4: Simplify right side
    22,027.58x = 472,651,909.13
  5. Step 5: Solve for x
    x = 472,651,909.13/22,027.58
  6. Step 6: Final answer
    x = 21,457.28

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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.