Home / 37,145.58-51,260.49-20,378.58

Finding the Fourth Proportional to 37,145.58, 51,260.49 and 20,378.58

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Solution

The fourth proportional to 37,145.58, 51,260.49 and 20,378.58 is: 28,122.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,145.58 : 51,260.49 = 20,378.58 : x
  2. Step 2: Convert to fraction form
    37,145.58/51,260.49 = 20,378.58/x
  3. Step 3: Cross multiply
    37,145.58x = 51,260.49 × 20,378.58
  4. Step 4: Simplify right side
    37,145.58x = 1,044,615,996.30
  5. Step 5: Solve for x
    x = 1,044,615,996.30/37,145.58
  6. Step 6: Final answer
    x = 28,122.22

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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.