Home / 28,086.13-38,741.65-19,137.66

Finding the Fourth Proportional to 28,086.13, 38,741.65 and 19,137.66

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Solution

The fourth proportional to 28,086.13, 38,741.65 and 19,137.66 is: 26,398.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,086.13 : 38,741.65 = 19,137.66 : x
  2. Step 2: Convert to fraction form
    28,086.13/38,741.65 = 19,137.66/x
  3. Step 3: Cross multiply
    28,086.13x = 38,741.65 × 19,137.66
  4. Step 4: Simplify right side
    28,086.13x = 741,424,525.54
  5. Step 5: Solve for x
    x = 741,424,525.54/28,086.13
  6. Step 6: Final answer
    x = 26,398.24

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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.