Home / 37,185.90-51,315.48-20,189.40

Finding the Fourth Proportional to 37,185.90, 51,315.48 and 20,189.40

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Solution

The fourth proportional to 37,185.90, 51,315.48 and 20,189.40 is: 27,860.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,185.90 : 51,315.48 = 20,189.40 : x
  2. Step 2: Convert to fraction form
    37,185.90/51,315.48 = 20,189.40/x
  3. Step 3: Cross multiply
    37,185.90x = 51,315.48 × 20,189.40
  4. Step 4: Simplify right side
    37,185.90x = 1,036,028,751.91
  5. Step 5: Solve for x
    x = 1,036,028,751.91/37,185.90
  6. Step 6: Final answer
    x = 27,860.80

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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.