Home / 37,077.70-51,162.30-21,161.20

Finding the Fourth Proportional to 37,077.70, 51,162.30 and 21,161.20

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Solution

The fourth proportional to 37,077.70, 51,162.30 and 21,161.20 is: 29,199.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,077.70 : 51,162.30 = 21,161.20 : x
  2. Step 2: Convert to fraction form
    37,077.70/51,162.30 = 21,161.20/x
  3. Step 3: Cross multiply
    37,077.70x = 51,162.30 × 21,161.20
  4. Step 4: Simplify right side
    37,077.70x = 1,082,655,662.76
  5. Step 5: Solve for x
    x = 1,082,655,662.76/37,077.70
  6. Step 6: Final answer
    x = 29,199.64

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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.