Home / 37,485.88-51,731.71-20,489.75

Finding the Fourth Proportional to 37,485.88, 51,731.71 and 20,489.75

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Solution

The fourth proportional to 37,485.88, 51,731.71 and 20,489.75 is: 28,276.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,485.88 : 51,731.71 = 20,489.75 : x
  2. Step 2: Convert to fraction form
    37,485.88/51,731.71 = 20,489.75/x
  3. Step 3: Cross multiply
    37,485.88x = 51,731.71 × 20,489.75
  4. Step 4: Simplify right side
    37,485.88x = 1,059,969,959.91
  5. Step 5: Solve for x
    x = 1,059,969,959.91/37,485.88
  6. Step 6: Final answer
    x = 28,276.51

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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.