Home / 27,577.38-38,057.10-20,666.32

Finding the Fourth Proportional to 27,577.38, 38,057.10 and 20,666.32

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Solution

The fourth proportional to 27,577.38, 38,057.10 and 20,666.32 is: 28,519.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,577.38 : 38,057.10 = 20,666.32 : x
  2. Step 2: Convert to fraction form
    27,577.38/38,057.10 = 20,666.32/x
  3. Step 3: Cross multiply
    27,577.38x = 38,057.10 × 20,666.32
  4. Step 4: Simplify right side
    27,577.38x = 786,500,206.87
  5. Step 5: Solve for x
    x = 786,500,206.87/27,577.38
  6. Step 6: Final answer
    x = 28,519.76

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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.