Home / 28,388.58-39,176.24-16,458.84

Finding the Fourth Proportional to 28,388.58, 39,176.24 and 16,458.84

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Solution

The fourth proportional to 28,388.58, 39,176.24 and 16,458.84 is: 22,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,388.58 : 39,176.24 = 16,458.84 : x
  2. Step 2: Convert to fraction form
    28,388.58/39,176.24 = 16,458.84/x
  3. Step 3: Cross multiply
    28,388.58x = 39,176.24 × 16,458.84
  4. Step 4: Simplify right side
    28,388.58x = 644,795,507.11
  5. Step 5: Solve for x
    x = 644,795,507.11/28,388.58
  6. Step 6: Final answer
    x = 22,713.20

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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.