Home / 19,228.76-26,515.19-15,188.48

Finding the Fourth Proportional to 19,228.76, 26,515.19 and 15,188.48

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Solution

The fourth proportional to 19,228.76, 26,515.19 and 15,188.48 is: 20,943.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,228.76 : 26,515.19 = 15,188.48 : x
  2. Step 2: Convert to fraction form
    19,228.76/26,515.19 = 15,188.48/x
  3. Step 3: Cross multiply
    19,228.76x = 26,515.19 × 15,188.48
  4. Step 4: Simplify right side
    19,228.76x = 402,725,338.41
  5. Step 5: Solve for x
    x = 402,725,338.41/19,228.76
  6. Step 6: Final answer
    x = 20,943.91

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Half scale
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Double scale
Find fourth proportional to 19,229.76, 26,516.57 and 15,189.48
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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.