Home / 28,255.22-38,999.37-19,306.34

Finding the Fourth Proportional to 28,255.22, 38,999.37 and 19,306.34

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Solution

The fourth proportional to 28,255.22, 38,999.37 and 19,306.34 is: 26,647.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,255.22 : 38,999.37 = 19,306.34 : x
  2. Step 2: Convert to fraction form
    28,255.22/38,999.37 = 19,306.34/x
  3. Step 3: Cross multiply
    28,255.22x = 38,999.37 × 19,306.34
  4. Step 4: Simplify right side
    28,255.22x = 752,935,097.01
  5. Step 5: Solve for x
    x = 752,935,097.01/28,255.22
  6. Step 6: Final answer
    x = 26,647.65

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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.