Home / 27,888.03-38,485.27-15,140.97

Finding the Fourth Proportional to 27,888.03, 38,485.27 and 15,140.97

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Solution

The fourth proportional to 27,888.03, 38,485.27 and 15,140.97 is: 20,894.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,888.03 : 38,485.27 = 15,140.97 : x
  2. Step 2: Convert to fraction form
    27,888.03/38,485.27 = 15,140.97/x
  3. Step 3: Cross multiply
    27,888.03x = 38,485.27 × 15,140.97
  4. Step 4: Simplify right side
    27,888.03x = 582,704,199.62
  5. Step 5: Solve for x
    x = 582,704,199.62/27,888.03
  6. Step 6: Final answer
    x = 20,894.42

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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.