Home / 18,581.31-25,642.22-10,623.69

Finding the Fourth Proportional to 18,581.31, 25,642.22 and 10,623.69

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Solution

The fourth proportional to 18,581.31, 25,642.22 and 10,623.69 is: 14,660.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,581.31 : 25,642.22 = 10,623.69 : x
  2. Step 2: Convert to fraction form
    18,581.31/25,642.22 = 10,623.69/x
  3. Step 3: Cross multiply
    18,581.31x = 25,642.22 × 10,623.69
  4. Step 4: Simplify right side
    18,581.31x = 272,414,943.07
  5. Step 5: Solve for x
    x = 272,414,943.07/18,581.31
  6. Step 6: Final answer
    x = 14,660.70

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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.