Home / 37,662.20-51,971.84-20,666.18

Finding the Fourth Proportional to 37,662.20, 51,971.84 and 20,666.18

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Solution

The fourth proportional to 37,662.20, 51,971.84 and 20,666.18 is: 28,518.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,662.20 : 51,971.84 = 20,666.18 : x
  2. Step 2: Convert to fraction form
    37,662.20/51,971.84 = 20,666.18/x
  3. Step 3: Cross multiply
    37,662.20x = 51,971.84 × 20,666.18
  4. Step 4: Simplify right side
    37,662.20x = 1,074,059,400.37
  5. Step 5: Solve for x
    x = 1,074,059,400.37/37,662.20
  6. Step 6: Final answer
    x = 28,518.23

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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.