Home / 23,215.45-34,828.58-18,489.50

Finding the Fourth Proportional to 23,215.45, 34,828.58 and 18,489.50

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Solution

The fourth proportional to 23,215.45, 34,828.58 and 18,489.50 is: 27,738.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,215.45 : 34,828.58 = 18,489.50 : x
  2. Step 2: Convert to fraction form
    23,215.45/34,828.58 = 18,489.50/x
  3. Step 3: Cross multiply
    23,215.45x = 34,828.58 × 18,489.50
  4. Step 4: Simplify right side
    23,215.45x = 643,962,937.46
  5. Step 5: Solve for x
    x = 643,962,937.46/23,215.45
  6. Step 6: Final answer
    x = 27,738.56

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1.5x scale

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.