Home / 31,233.71-43,090.58-19,123.20

Finding the Fourth Proportional to 31,233.71, 43,090.58 and 19,123.20

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Solution

The fourth proportional to 31,233.71, 43,090.58 and 19,123.20 is: 26,382.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,233.71 : 43,090.58 = 19,123.20 : x
  2. Step 2: Convert to fraction form
    31,233.71/43,090.58 = 19,123.20/x
  3. Step 3: Cross multiply
    31,233.71x = 43,090.58 × 19,123.20
  4. Step 4: Simplify right side
    31,233.71x = 824,029,683.84
  5. Step 5: Solve for x
    x = 824,029,683.84/31,233.71
  6. Step 6: Final answer
    x = 26,382.71

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Half scale
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Double scale
Find fourth proportional to 31,234.71, 43,091.95 and 19,124.20
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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.