Home / 20,042.19-30,070.44-8,947.89

Finding the Fourth Proportional to 20,042.19, 30,070.44 and 8,947.89

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Solution

The fourth proportional to 20,042.19, 30,070.44 and 8,947.89 is: 13,425.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,042.19 : 30,070.44 = 8,947.89 : x
  2. Step 2: Convert to fraction form
    20,042.19/30,070.44 = 8,947.89/x
  3. Step 3: Cross multiply
    20,042.19x = 30,070.44 × 8,947.89
  4. Step 4: Simplify right side
    20,042.19x = 269,066,989.37
  5. Step 5: Solve for x
    x = 269,066,989.37/20,042.19
  6. Step 6: Final answer
    x = 13,425.03

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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.