Home / 27,766.19-38,317.90-15,191.21

Finding the Fourth Proportional to 27,766.19, 38,317.90 and 15,191.21

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Solution

The fourth proportional to 27,766.19, 38,317.90 and 15,191.21 is: 20,964.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,766.19 : 38,317.90 = 15,191.21 : x
  2. Step 2: Convert to fraction form
    27,766.19/38,317.90 = 15,191.21/x
  3. Step 3: Cross multiply
    27,766.19x = 38,317.90 × 15,191.21
  4. Step 4: Simplify right side
    27,766.19x = 582,095,265.66
  5. Step 5: Solve for x
    x = 582,095,265.66/27,766.19
  6. Step 6: Final answer
    x = 20,964.17

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Half scale
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Double scale
Find fourth proportional to 27,767.19, 38,319.28 and 15,192.21
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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.