Home / 25,000.23-34,500.81-13,670.43

Finding the Fourth Proportional to 25,000.23, 34,500.81 and 13,670.43

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Solution

The fourth proportional to 25,000.23, 34,500.81 and 13,670.43 is: 18,865.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,000.23 : 34,500.81 = 13,670.43 : x
  2. Step 2: Convert to fraction form
    25,000.23/34,500.81 = 13,670.43/x
  3. Step 3: Cross multiply
    25,000.23x = 34,500.81 × 13,670.43
  4. Step 4: Simplify right side
    25,000.23x = 471,640,908.05
  5. Step 5: Solve for x
    x = 471,640,908.05/25,000.23
  6. Step 6: Final answer
    x = 18,865.47

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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.