Home / 37,146.08-51,259.92-20,378.72

Finding the Fourth Proportional to 37,146.08, 51,259.92 and 20,378.72

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Solution

The fourth proportional to 37,146.08, 51,259.92 and 20,378.72 is: 28,121.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,146.08 : 51,259.92 = 20,378.72 : x
  2. Step 2: Convert to fraction form
    37,146.08/51,259.92 = 20,378.72/x
  3. Step 3: Cross multiply
    37,146.08x = 51,259.92 × 20,378.72
  4. Step 4: Simplify right side
    37,146.08x = 1,044,611,556.90
  5. Step 5: Solve for x
    x = 1,044,611,556.90/37,146.08
  6. Step 6: Final answer
    x = 28,121.72

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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.