Home / 18,601.65-25,640.75-14,615.91

Finding the Fourth Proportional to 18,601.65, 25,640.75 and 14,615.91

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Solution

The fourth proportional to 18,601.65, 25,640.75 and 14,615.91 is: 20,146.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,601.65 : 25,640.75 = 14,615.91 : x
  2. Step 2: Convert to fraction form
    18,601.65/25,640.75 = 14,615.91/x
  3. Step 3: Cross multiply
    18,601.65x = 25,640.75 × 14,615.91
  4. Step 4: Simplify right side
    18,601.65x = 374,762,930.87
  5. Step 5: Solve for x
    x = 374,762,930.87/18,601.65
  6. Step 6: Final answer
    x = 20,146.76

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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.