Home / 15,420.92-23,131.50-5,032.70

Finding the Fourth Proportional to 15,420.92, 23,131.50 and 5,032.70

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Solution

The fourth proportional to 15,420.92, 23,131.50 and 5,032.70 is: 7,549.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,420.92 : 23,131.50 = 5,032.70 : x
  2. Step 2: Convert to fraction form
    15,420.92/23,131.50 = 5,032.70/x
  3. Step 3: Cross multiply
    15,420.92x = 23,131.50 × 5,032.70
  4. Step 4: Simplify right side
    15,420.92x = 116,413,900.05
  5. Step 5: Solve for x
    x = 116,413,900.05/15,420.92
  6. Step 6: Final answer
    x = 7,549.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.