Home / 36,987.13-51,042.44-20,220.13

Finding the Fourth Proportional to 36,987.13, 51,042.44 and 20,220.13

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Solution

The fourth proportional to 36,987.13, 51,042.44 and 20,220.13 is: 27,903.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,987.13 : 51,042.44 = 20,220.13 : x
  2. Step 2: Convert to fraction form
    36,987.13/51,042.44 = 20,220.13/x
  3. Step 3: Cross multiply
    36,987.13x = 51,042.44 × 20,220.13
  4. Step 4: Simplify right side
    36,987.13x = 1,032,084,416.00
  5. Step 5: Solve for x
    x = 1,032,084,416.00/36,987.13
  6. Step 6: Final answer
    x = 27,903.88

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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.