Home / 27,708-38,237.25-15,132.75

Finding the Fourth Proportional to 27,708, 38,237.25 and 15,132.75

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Solution

The fourth proportional to 27,708, 38,237.25 and 15,132.75 is: 20,883.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,708 : 38,237.25 = 15,132.75 : x
  2. Step 2: Convert to fraction form
    27,708/38,237.25 = 15,132.75/x
  3. Step 3: Cross multiply
    27,708x = 38,237.25 × 15,132.75
  4. Step 4: Simplify right side
    27,708x = 578,634,744.94
  5. Step 5: Solve for x
    x = 578,634,744.94/27,708
  6. Step 6: Final answer
    x = 20,883.31

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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.