Home / 36,987.93-51,047.82-20,858.31

Finding the Fourth Proportional to 36,987.93, 51,047.82 and 20,858.31

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Solution

The fourth proportional to 36,987.93, 51,047.82 and 20,858.31 is: 28,786.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,987.93 : 51,047.82 = 20,858.31 : x
  2. Step 2: Convert to fraction form
    36,987.93/51,047.82 = 20,858.31/x
  3. Step 3: Cross multiply
    36,987.93x = 51,047.82 × 20,858.31
  4. Step 4: Simplify right side
    36,987.93x = 1,064,771,254.38
  5. Step 5: Solve for x
    x = 1,064,771,254.38/36,987.93
  6. Step 6: Final answer
    x = 28,786.99

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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.