Home / 20,055.11-27,676.50-10,981.34

Finding the Fourth Proportional to 20,055.11, 27,676.50 and 10,981.34

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Solution

The fourth proportional to 20,055.11, 27,676.50 and 10,981.34 is: 15,154.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,055.11 : 27,676.50 = 10,981.34 : x
  2. Step 2: Convert to fraction form
    20,055.11/27,676.50 = 10,981.34/x
  3. Step 3: Cross multiply
    20,055.11x = 27,676.50 × 10,981.34
  4. Step 4: Simplify right side
    20,055.11x = 303,924,918.13
  5. Step 5: Solve for x
    x = 303,924,918.13/20,055.11
  6. Step 6: Final answer
    x = 15,154.49

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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.