Home / 28,341.44-39,111.41-15,766.19

Finding the Fourth Proportional to 28,341.44, 39,111.41 and 15,766.19

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Solution

The fourth proportional to 28,341.44, 39,111.41 and 15,766.19 is: 21,757.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,341.44 : 39,111.41 = 15,766.19 : x
  2. Step 2: Convert to fraction form
    28,341.44/39,111.41 = 15,766.19/x
  3. Step 3: Cross multiply
    28,341.44x = 39,111.41 × 15,766.19
  4. Step 4: Simplify right side
    28,341.44x = 616,637,921.23
  5. Step 5: Solve for x
    x = 616,637,921.23/28,341.44
  6. Step 6: Final answer
    x = 21,757.47

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Half scale
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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.