Home / 20,474.74-28,257.86-11,523.99

Finding the Fourth Proportional to 20,474.74, 28,257.86 and 11,523.99

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Solution

The fourth proportional to 20,474.74, 28,257.86 and 11,523.99 is: 15,904.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,474.74 : 28,257.86 = 11,523.99 : x
  2. Step 2: Convert to fraction form
    20,474.74/28,257.86 = 11,523.99/x
  3. Step 3: Cross multiply
    20,474.74x = 28,257.86 × 11,523.99
  4. Step 4: Simplify right side
    20,474.74x = 325,643,271.89
  5. Step 5: Solve for x
    x = 325,643,271.89/20,474.74
  6. Step 6: Final answer
    x = 15,904.63

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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.