Home / 25,815.76-35,623.44-15,747.16

Finding the Fourth Proportional to 25,815.76, 35,623.44 and 15,747.16

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Solution

The fourth proportional to 25,815.76, 35,623.44 and 15,747.16 is: 21,729.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,815.76 : 35,623.44 = 15,747.16 : x
  2. Step 2: Convert to fraction form
    25,815.76/35,623.44 = 15,747.16/x
  3. Step 3: Cross multiply
    25,815.76x = 35,623.44 × 15,747.16
  4. Step 4: Simplify right side
    25,815.76x = 560,968,009.43
  5. Step 5: Solve for x
    x = 560,968,009.43/25,815.76
  6. Step 6: Final answer
    x = 21,729.67

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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.