Home / 25,317.88-34,889.34-18,230.92

Finding the Fourth Proportional to 25,317.88, 34,889.34 and 18,230.92

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Solution

The fourth proportional to 25,317.88, 34,889.34 and 18,230.92 is: 25,123.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,317.88 : 34,889.34 = 18,230.92 : x
  2. Step 2: Convert to fraction form
    25,317.88/34,889.34 = 18,230.92/x
  3. Step 3: Cross multiply
    25,317.88x = 34,889.34 × 18,230.92
  4. Step 4: Simplify right side
    25,317.88x = 636,064,766.39
  5. Step 5: Solve for x
    x = 636,064,766.39/25,317.88
  6. Step 6: Final answer
    x = 25,123.14

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Double scale
Find fourth proportional to 25,318.88, 34,890.72 and 18,231.92
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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.