Home / 25,020.53-34,516.43-15,456.99

Finding the Fourth Proportional to 25,020.53, 34,516.43 and 15,456.99

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Solution

The fourth proportional to 25,020.53, 34,516.43 and 15,456.99 is: 21,323.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,020.53 : 34,516.43 = 15,456.99 : x
  2. Step 2: Convert to fraction form
    25,020.53/34,516.43 = 15,456.99/x
  3. Step 3: Cross multiply
    25,020.53x = 34,516.43 × 15,456.99
  4. Step 4: Simplify right side
    25,020.53x = 533,520,223.46
  5. Step 5: Solve for x
    x = 533,520,223.46/25,020.53
  6. Step 6: Final answer
    x = 21,323.30

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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.