Home / 28,638.27-39,541.28-19,100.70

Finding the Fourth Proportional to 28,638.27, 39,541.28 and 19,100.70

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Solution

The fourth proportional to 28,638.27, 39,541.28 and 19,100.70 is: 26,372.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,638.27 : 39,541.28 = 19,100.70 : x
  2. Step 2: Convert to fraction form
    28,638.27/39,541.28 = 19,100.70/x
  3. Step 3: Cross multiply
    28,638.27x = 39,541.28 × 19,100.70
  4. Step 4: Simplify right side
    28,638.27x = 755,265,976.94
  5. Step 5: Solve for x
    x = 755,265,976.94/28,638.27
  6. Step 6: Final answer
    x = 26,372.62

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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.