Home / 18,858.33-28,283.85-17,921.70

Finding the Fourth Proportional to 18,858.33, 28,283.85 and 17,921.70

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Solution

The fourth proportional to 18,858.33, 28,283.85 and 17,921.70 is: 26,879.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,858.33 : 28,283.85 = 17,921.70 : x
  2. Step 2: Convert to fraction form
    18,858.33/28,283.85 = 17,921.70/x
  3. Step 3: Cross multiply
    18,858.33x = 28,283.85 × 17,921.70
  4. Step 4: Simplify right side
    18,858.33x = 506,894,674.55
  5. Step 5: Solve for x
    x = 506,894,674.55/18,858.33
  6. Step 6: Final answer
    x = 26,879.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.