Home / 25,563.47-38,293.29-12,905.42

Finding the Fourth Proportional to 25,563.47, 38,293.29 and 12,905.42

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Solution

The fourth proportional to 25,563.47, 38,293.29 and 12,905.42 is: 19,331.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,563.47 : 38,293.29 = 12,905.42 : x
  2. Step 2: Convert to fraction form
    25,563.47/38,293.29 = 12,905.42/x
  3. Step 3: Cross multiply
    25,563.47x = 38,293.29 × 12,905.42
  4. Step 4: Simplify right side
    25,563.47x = 494,190,799.17
  5. Step 5: Solve for x
    x = 494,190,799.17/25,563.47
  6. Step 6: Final answer
    x = 19,331.92

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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.