Home / 18,458.40-25,491.60-14,224.80

Finding the Fourth Proportional to 18,458.40, 25,491.60 and 14,224.80

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Solution

The fourth proportional to 18,458.40, 25,491.60 and 14,224.80 is: 19,644.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,458.40 : 25,491.60 = 14,224.80 : x
  2. Step 2: Convert to fraction form
    18,458.40/25,491.60 = 14,224.80/x
  3. Step 3: Cross multiply
    18,458.40x = 25,491.60 × 14,224.80
  4. Step 4: Simplify right side
    18,458.40x = 362,612,911.68
  5. Step 5: Solve for x
    x = 362,612,911.68/18,458.40
  6. Step 6: Final answer
    x = 19,644.87

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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.