Home / 28,446.58-39,234.03-18,376.05

Finding the Fourth Proportional to 28,446.58, 39,234.03 and 18,376.05

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Solution

The fourth proportional to 28,446.58, 39,234.03 and 18,376.05 is: 25,344.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,446.58 : 39,234.03 = 18,376.05 : x
  2. Step 2: Convert to fraction form
    28,446.58/39,234.03 = 18,376.05/x
  3. Step 3: Cross multiply
    28,446.58x = 39,234.03 × 18,376.05
  4. Step 4: Simplify right side
    28,446.58x = 720,966,496.98
  5. Step 5: Solve for x
    x = 720,966,496.98/28,446.58
  6. Step 6: Final answer
    x = 25,344.58

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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.