Home / 37,145.04-51,260.16-20,378

Finding the Fourth Proportional to 37,145.04, 51,260.16 and 20,378

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Solution

The fourth proportional to 37,145.04, 51,260.16 and 20,378 is: 28,121.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,145.04 : 51,260.16 = 20,378 : x
  2. Step 2: Convert to fraction form
    37,145.04/51,260.16 = 20,378/x
  3. Step 3: Cross multiply
    37,145.04x = 51,260.16 × 20,378
  4. Step 4: Simplify right side
    37,145.04x = 1,044,579,540.48
  5. Step 5: Solve for x
    x = 1,044,579,540.48/37,145.04
  6. Step 6: Final answer
    x = 28,121.64

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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.