Home / 18,432.33-25,416.52-12,453.63

Finding the Fourth Proportional to 18,432.33, 25,416.52 and 12,453.63

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Solution

The fourth proportional to 18,432.33, 25,416.52 and 12,453.63 is: 17,172.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,432.33 : 25,416.52 = 12,453.63 : x
  2. Step 2: Convert to fraction form
    18,432.33/25,416.52 = 12,453.63/x
  3. Step 3: Cross multiply
    18,432.33x = 25,416.52 × 12,453.63
  4. Step 4: Simplify right side
    18,432.33x = 316,527,935.97
  5. Step 5: Solve for x
    x = 316,527,935.97/18,432.33
  6. Step 6: Final answer
    x = 17,172.43

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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.