Home / 36,987.75-51,043.28-20,220.75

Finding the Fourth Proportional to 36,987.75, 51,043.28 and 20,220.75

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Solution

The fourth proportional to 36,987.75, 51,043.28 and 20,220.75 is: 27,904.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,987.75 : 51,043.28 = 20,220.75 : x
  2. Step 2: Convert to fraction form
    36,987.75/51,043.28 = 20,220.75/x
  3. Step 3: Cross multiply
    36,987.75x = 51,043.28 × 20,220.75
  4. Step 4: Simplify right side
    36,987.75x = 1,032,133,302.96
  5. Step 5: Solve for x
    x = 1,032,133,302.96/36,987.75
  6. Step 6: Final answer
    x = 27,904.73

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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.