Home / 28,213.90-38,924.87-16,883.72

Finding the Fourth Proportional to 28,213.90, 38,924.87 and 16,883.72

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Solution

The fourth proportional to 28,213.90, 38,924.87 and 16,883.72 is: 23,293.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,213.90 : 38,924.87 = 16,883.72 : x
  2. Step 2: Convert to fraction form
    28,213.90/38,924.87 = 16,883.72/x
  3. Step 3: Cross multiply
    28,213.90x = 38,924.87 × 16,883.72
  4. Step 4: Simplify right side
    28,213.90x = 657,196,453.70
  5. Step 5: Solve for x
    x = 657,196,453.70/28,213.90
  6. Step 6: Final answer
    x = 23,293.36

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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.