Home / 37,189.07-51,320.87-20,422.07

Finding the Fourth Proportional to 37,189.07, 51,320.87 and 20,422.07

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Solution

The fourth proportional to 37,189.07, 51,320.87 and 20,422.07 is: 28,182.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,189.07 : 51,320.87 = 20,422.07 : x
  2. Step 2: Convert to fraction form
    37,189.07/51,320.87 = 20,422.07/x
  3. Step 3: Cross multiply
    37,189.07x = 51,320.87 × 20,422.07
  4. Step 4: Simplify right side
    37,189.07x = 1,048,078,399.60
  5. Step 5: Solve for x
    x = 1,048,078,399.60/37,189.07
  6. Step 6: Final answer
    x = 28,182.43

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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.