Home / 28,273.20-39,009.03-18,207.46

Finding the Fourth Proportional to 28,273.20, 39,009.03 and 18,207.46

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Solution

The fourth proportional to 28,273.20, 39,009.03 and 18,207.46 is: 25,121.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,273.20 : 39,009.03 = 18,207.46 : x
  2. Step 2: Convert to fraction form
    28,273.20/39,009.03 = 18,207.46/x
  3. Step 3: Cross multiply
    28,273.20x = 39,009.03 × 18,207.46
  4. Step 4: Simplify right side
    28,273.20x = 710,255,333.85
  5. Step 5: Solve for x
    x = 710,255,333.85/28,273.20
  6. Step 6: Final answer
    x = 25,121.15

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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.