Home / 28,231.58-38,955.27-16,129.94

Finding the Fourth Proportional to 28,231.58, 38,955.27 and 16,129.94

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Solution

The fourth proportional to 28,231.58, 38,955.27 and 16,129.94 is: 22,256.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,231.58 : 38,955.27 = 16,129.94 : x
  2. Step 2: Convert to fraction form
    28,231.58/38,955.27 = 16,129.94/x
  3. Step 3: Cross multiply
    28,231.58x = 38,955.27 × 16,129.94
  4. Step 4: Simplify right side
    28,231.58x = 628,345,973.01
  5. Step 5: Solve for x
    x = 628,345,973.01/28,231.58
  6. Step 6: Final answer
    x = 22,256.85

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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.