Home / 37,678.74-51,996.30-20,911.74

Finding the Fourth Proportional to 37,678.74, 51,996.30 and 20,911.74

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Solution

The fourth proportional to 37,678.74, 51,996.30 and 20,911.74 is: 28,858.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,678.74 : 51,996.30 = 20,911.74 : x
  2. Step 2: Convert to fraction form
    37,678.74/51,996.30 = 20,911.74/x
  3. Step 3: Cross multiply
    37,678.74x = 51,996.30 × 20,911.74
  4. Step 4: Simplify right side
    37,678.74x = 1,087,333,106.56
  5. Step 5: Solve for x
    x = 1,087,333,106.56/37,678.74
  6. Step 6: Final answer
    x = 28,858.00

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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.