Home / 27,621.32-38,116.10-15,683.06

Finding the Fourth Proportional to 27,621.32, 38,116.10 and 15,683.06

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Solution

The fourth proportional to 27,621.32, 38,116.10 and 15,683.06 is: 21,641.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,621.32 : 38,116.10 = 15,683.06 : x
  2. Step 2: Convert to fraction form
    27,621.32/38,116.10 = 15,683.06/x
  3. Step 3: Cross multiply
    27,621.32x = 38,116.10 × 15,683.06
  4. Step 4: Simplify right side
    27,621.32x = 597,777,217.76
  5. Step 5: Solve for x
    x = 597,777,217.76/27,621.32
  6. Step 6: Final answer
    x = 21,641.88

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Half scale
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Double scale
Find fourth proportional to 27,622.32, 38,117.48 and 15,684.06
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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.