Home / 28,021.90-38,675.96-16,698.03

Finding the Fourth Proportional to 28,021.90, 38,675.96 and 16,698.03

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Solution

The fourth proportional to 28,021.90, 38,675.96 and 16,698.03 is: 23,046.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,021.90 : 38,675.96 = 16,698.03 : x
  2. Step 2: Convert to fraction form
    28,021.90/38,675.96 = 16,698.03/x
  3. Step 3: Cross multiply
    28,021.90x = 38,675.96 × 16,698.03
  4. Step 4: Simplify right side
    28,021.90x = 645,812,382.10
  5. Step 5: Solve for x
    x = 645,812,382.10/28,021.90
  6. Step 6: Final answer
    x = 23,046.70

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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.