Home / 28,334.58-39,110.58-19,378.86

Finding the Fourth Proportional to 28,334.58, 39,110.58 and 19,378.86

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Solution

The fourth proportional to 28,334.58, 39,110.58 and 19,378.86 is: 26,748.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,334.58 : 39,110.58 = 19,378.86 : x
  2. Step 2: Convert to fraction form
    28,334.58/39,110.58 = 19,378.86/x
  3. Step 3: Cross multiply
    28,334.58x = 39,110.58 × 19,378.86
  4. Step 4: Simplify right side
    28,334.58x = 757,918,454.34
  5. Step 5: Solve for x
    x = 757,918,454.34/28,334.58
  6. Step 6: Final answer
    x = 26,748.89

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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.