Home / 37,156.37-51,273.28-20,390.45

Finding the Fourth Proportional to 37,156.37, 51,273.28 and 20,390.45

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Solution

The fourth proportional to 37,156.37, 51,273.28 and 20,390.45 is: 28,137.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,156.37 : 51,273.28 = 20,390.45 : x
  2. Step 2: Convert to fraction form
    37,156.37/51,273.28 = 20,390.45/x
  3. Step 3: Cross multiply
    37,156.37x = 51,273.28 × 20,390.45
  4. Step 4: Simplify right side
    37,156.37x = 1,045,485,252.18
  5. Step 5: Solve for x
    x = 1,045,485,252.18/37,156.37
  6. Step 6: Final answer
    x = 28,137.44

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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.