Home / 37,678.08-51,996.24-20,911.20

Finding the Fourth Proportional to 37,678.08, 51,996.24 and 20,911.20

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Solution

The fourth proportional to 37,678.08, 51,996.24 and 20,911.20 is: 28,857.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,678.08 : 51,996.24 = 20,911.20 : x
  2. Step 2: Convert to fraction form
    37,678.08/51,996.24 = 20,911.20/x
  3. Step 3: Cross multiply
    37,678.08x = 51,996.24 × 20,911.20
  4. Step 4: Simplify right side
    37,678.08x = 1,087,303,773.89
  5. Step 5: Solve for x
    x = 1,087,303,773.89/37,678.08
  6. Step 6: Final answer
    x = 28,857.73

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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.