Home / 28,070.96-38,739.39-16,135.41

Finding the Fourth Proportional to 28,070.96, 38,739.39 and 16,135.41

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Solution

The fourth proportional to 28,070.96, 38,739.39 and 16,135.41 is: 22,267.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,070.96 : 38,739.39 = 16,135.41 : x
  2. Step 2: Convert to fraction form
    28,070.96/38,739.39 = 16,135.41/x
  3. Step 3: Cross multiply
    28,070.96x = 38,739.39 × 16,135.41
  4. Step 4: Simplify right side
    28,070.96x = 625,075,940.80
  5. Step 5: Solve for x
    x = 625,075,940.80/28,070.96
  6. Step 6: Final answer
    x = 22,267.71

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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.