Home / 22,117.20-30,522.11-12,556.83

Finding the Fourth Proportional to 22,117.20, 30,522.11 and 12,556.83

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Solution

The fourth proportional to 22,117.20, 30,522.11 and 12,556.83 is: 17,328.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,117.20 : 30,522.11 = 12,556.83 : x
  2. Step 2: Convert to fraction form
    22,117.20/30,522.11 = 12,556.83/x
  3. Step 3: Cross multiply
    22,117.20x = 30,522.11 × 12,556.83
  4. Step 4: Simplify right side
    22,117.20x = 383,260,946.51
  5. Step 5: Solve for x
    x = 383,260,946.51/22,117.20
  6. Step 6: Final answer
    x = 17,328.64

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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.