Home / 20,106.43-27,746.65-11,154.00

Finding the Fourth Proportional to 20,106.43, 27,746.65 and 11,154.00

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Solution

The fourth proportional to 20,106.43, 27,746.65 and 11,154.00 is: 15,392.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,106.43 : 27,746.65 = 11,154.00 : x
  2. Step 2: Convert to fraction form
    20,106.43/27,746.65 = 11,154.00/x
  3. Step 3: Cross multiply
    20,106.43x = 27,746.65 × 11,154.00
  4. Step 4: Simplify right side
    20,106.43x = 309,486,252.09
  5. Step 5: Solve for x
    x = 309,486,252.09/20,106.43
  6. Step 6: Final answer
    x = 15,392.40

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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.