Home / 27,782.19-38,340.27-15,206.94

Finding the Fourth Proportional to 27,782.19, 38,340.27 and 15,206.94

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Solution

The fourth proportional to 27,782.19, 38,340.27 and 15,206.94 is: 20,986.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,782.19 : 38,340.27 = 15,206.94 : x
  2. Step 2: Convert to fraction form
    27,782.19/38,340.27 = 15,206.94/x
  3. Step 3: Cross multiply
    27,782.19x = 38,340.27 × 15,206.94
  4. Step 4: Simplify right side
    27,782.19x = 583,038,185.47
  5. Step 5: Solve for x
    x = 583,038,185.47/27,782.19
  6. Step 6: Final answer
    x = 20,986.04

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Half scale
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Double scale
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Similar ratio
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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.