Home / 37,659.68-51,968.20-20,660.56

Finding the Fourth Proportional to 37,659.68, 51,968.20 and 20,660.56

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Solution

The fourth proportional to 37,659.68, 51,968.20 and 20,660.56 is: 28,510.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,659.68 : 51,968.20 = 20,660.56 : x
  2. Step 2: Convert to fraction form
    37,659.68/51,968.20 = 20,660.56/x
  3. Step 3: Cross multiply
    37,659.68x = 51,968.20 × 20,660.56
  4. Step 4: Simplify right side
    37,659.68x = 1,073,692,114.19
  5. Step 5: Solve for x
    x = 1,073,692,114.19/37,659.68
  6. Step 6: Final answer
    x = 28,510.39

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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.