Home / 20,101.34-27,739.14-11,149.67

Finding the Fourth Proportional to 20,101.34, 27,739.14 and 11,149.67

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Solution

The fourth proportional to 20,101.34, 27,739.14 and 11,149.67 is: 15,386.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101.34 : 27,739.14 = 11,149.67 : x
  2. Step 2: Convert to fraction form
    20,101.34/27,739.14 = 11,149.67/x
  3. Step 3: Cross multiply
    20,101.34x = 27,739.14 × 11,149.67
  4. Step 4: Simplify right side
    20,101.34x = 309,282,339.31
  5. Step 5: Solve for x
    x = 309,282,339.31/20,101.34
  6. Step 6: Final answer
    x = 15,386.16

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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.