Home / 20,065.13-30,101.75-13,828.13

Finding the Fourth Proportional to 20,065.13, 30,101.75 and 13,828.13

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Solution

The fourth proportional to 20,065.13, 30,101.75 and 13,828.13 is: 20,744.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,065.13 : 30,101.75 = 13,828.13 : x
  2. Step 2: Convert to fraction form
    20,065.13/30,101.75 = 13,828.13/x
  3. Step 3: Cross multiply
    20,065.13x = 30,101.75 × 13,828.13
  4. Step 4: Simplify right side
    20,065.13x = 416,250,912.23
  5. Step 5: Solve for x
    x = 416,250,912.23/20,065.13
  6. Step 6: Final answer
    x = 20,744.99

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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.