Home / 20,106.45-27,746.91-11,154.06

Finding the Fourth Proportional to 20,106.45, 27,746.91 and 11,154.06

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Solution

The fourth proportional to 20,106.45, 27,746.91 and 11,154.06 is: 15,392.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,106.45 : 27,746.91 = 11,154.06 : x
  2. Step 2: Convert to fraction form
    20,106.45/27,746.91 = 11,154.06/x
  3. Step 3: Cross multiply
    20,106.45x = 27,746.91 × 11,154.06
  4. Step 4: Simplify right side
    20,106.45x = 309,490,698.95
  5. Step 5: Solve for x
    x = 309,490,698.95/20,106.45
  6. Step 6: Final answer
    x = 15,392.61

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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.