Home / 28,546.88-39,395.76-15,971.72

Finding the Fourth Proportional to 28,546.88, 39,395.76 and 15,971.72

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Solution

The fourth proportional to 28,546.88, 39,395.76 and 15,971.72 is: 22,041.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,546.88 : 39,395.76 = 15,971.72 : x
  2. Step 2: Convert to fraction form
    28,546.88/39,395.76 = 15,971.72/x
  3. Step 3: Cross multiply
    28,546.88x = 39,395.76 × 15,971.72
  4. Step 4: Simplify right side
    28,546.88x = 629,218,047.91
  5. Step 5: Solve for x
    x = 629,218,047.91/28,546.88
  6. Step 6: Final answer
    x = 22,041.57

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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.