Home / 25,040.61-34,553.79-14,428.80

Finding the Fourth Proportional to 25,040.61, 34,553.79 and 14,428.80

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Solution

The fourth proportional to 25,040.61, 34,553.79 and 14,428.80 is: 19,910.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,040.61 : 34,553.79 = 14,428.80 : x
  2. Step 2: Convert to fraction form
    25,040.61/34,553.79 = 14,428.80/x
  3. Step 3: Cross multiply
    25,040.61x = 34,553.79 × 14,428.80
  4. Step 4: Simplify right side
    25,040.61x = 498,569,725.15
  5. Step 5: Solve for x
    x = 498,569,725.15/25,040.61
  6. Step 6: Final answer
    x = 19,910.45

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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.