Home / 13,881.07-20,821.57-4,020.34

Finding the Fourth Proportional to 13,881.07, 20,821.57 and 4,020.34

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Solution

The fourth proportional to 13,881.07, 20,821.57 and 4,020.34 is: 6,030.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,881.07 : 20,821.57 = 4,020.34 : x
  2. Step 2: Convert to fraction form
    13,881.07/20,821.57 = 4,020.34/x
  3. Step 3: Cross multiply
    13,881.07x = 20,821.57 × 4,020.34
  4. Step 4: Simplify right side
    13,881.07x = 83,709,790.73
  5. Step 5: Solve for x
    x = 83,709,790.73/13,881.07
  6. Step 6: Final answer
    x = 6,030.50

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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.