Home / 28,604.35-39,489.71-19,543.34

Finding the Fourth Proportional to 28,604.35, 39,489.71 and 19,543.34

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Solution

The fourth proportional to 28,604.35, 39,489.71 and 19,543.34 is: 26,980.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,604.35 : 39,489.71 = 19,543.34 : x
  2. Step 2: Convert to fraction form
    28,604.35/39,489.71 = 19,543.34/x
  3. Step 3: Cross multiply
    28,604.35x = 39,489.71 × 19,543.34
  4. Step 4: Simplify right side
    28,604.35x = 771,760,829.03
  5. Step 5: Solve for x
    x = 771,760,829.03/28,604.35
  6. Step 6: Final answer
    x = 26,980.54

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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.