Home / 22,118.13-30,515.45-12,556.67

Finding the Fourth Proportional to 22,118.13, 30,515.45 and 12,556.67

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Solution

The fourth proportional to 22,118.13, 30,515.45 and 12,556.67 is: 17,323.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,118.13 : 30,515.45 = 12,556.67 : x
  2. Step 2: Convert to fraction form
    22,118.13/30,515.45 = 12,556.67/x
  3. Step 3: Cross multiply
    22,118.13x = 30,515.45 × 12,556.67
  4. Step 4: Simplify right side
    22,118.13x = 383,172,220.19
  5. Step 5: Solve for x
    x = 383,172,220.19/22,118.13
  6. Step 6: Final answer
    x = 17,323.90

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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.