Home / 38,178.19-52,686.19-20,950.44

Finding the Fourth Proportional to 38,178.19, 52,686.19 and 20,950.44

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Solution

The fourth proportional to 38,178.19, 52,686.19 and 20,950.44 is: 28,911.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,178.19 : 52,686.19 = 20,950.44 : x
  2. Step 2: Convert to fraction form
    38,178.19/52,686.19 = 20,950.44/x
  3. Step 3: Cross multiply
    38,178.19x = 52,686.19 × 20,950.44
  4. Step 4: Simplify right side
    38,178.19x = 1,103,798,862.42
  5. Step 5: Solve for x
    x = 1,103,798,862.42/38,178.19
  6. Step 6: Final answer
    x = 28,911.77

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Half scale
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Double scale
Find fourth proportional to 38,179.19, 52,687.57 and 20,951.44
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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.