Home / 20,538.32-28,343.32-12,584.93

Finding the Fourth Proportional to 20,538.32, 28,343.32 and 12,584.93

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Solution

The fourth proportional to 20,538.32, 28,343.32 and 12,584.93 is: 17,367.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,538.32 : 28,343.32 = 12,584.93 : x
  2. Step 2: Convert to fraction form
    20,538.32/28,343.32 = 12,584.93/x
  3. Step 3: Cross multiply
    20,538.32x = 28,343.32 × 12,584.93
  4. Step 4: Simplify right side
    20,538.32x = 356,698,524.99
  5. Step 5: Solve for x
    x = 356,698,524.99/20,538.32
  6. Step 6: Final answer
    x = 17,367.47

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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.