Home / 20,476.75-28,260.63-11,525.99

Finding the Fourth Proportional to 20,476.75, 28,260.63 and 11,525.99

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Solution

The fourth proportional to 20,476.75, 28,260.63 and 11,525.99 is: 15,907.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,476.75 : 28,260.63 = 11,525.99 : x
  2. Step 2: Convert to fraction form
    20,476.75/28,260.63 = 11,525.99/x
  3. Step 3: Cross multiply
    20,476.75x = 28,260.63 × 11,525.99
  4. Step 4: Simplify right side
    20,476.75x = 325,731,738.77
  5. Step 5: Solve for x
    x = 325,731,738.77/20,476.75
  6. Step 6: Final answer
    x = 15,907.40

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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.