Home / 28,084.10-38,768.76-17,879.31

Finding the Fourth Proportional to 28,084.10, 38,768.76 and 17,879.31

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Solution

The fourth proportional to 28,084.10, 38,768.76 and 17,879.31 is: 24,681.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,084.10 : 38,768.76 = 17,879.31 : x
  2. Step 2: Convert to fraction form
    28,084.10/38,768.76 = 17,879.31/x
  3. Step 3: Cross multiply
    28,084.10x = 38,768.76 × 17,879.31
  4. Step 4: Simplify right side
    28,084.10x = 693,158,678.36
  5. Step 5: Solve for x
    x = 693,158,678.36/28,084.10
  6. Step 6: Final answer
    x = 24,681.54

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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.