Home / 18,780.30-25,889.19-14,296.25

Finding the Fourth Proportional to 18,780.30, 25,889.19 and 14,296.25

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Solution

The fourth proportional to 18,780.30, 25,889.19 and 14,296.25 is: 19,707.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,780.30 : 25,889.19 = 14,296.25 : x
  2. Step 2: Convert to fraction form
    18,780.30/25,889.19 = 14,296.25/x
  3. Step 3: Cross multiply
    18,780.30x = 25,889.19 × 14,296.25
  4. Step 4: Simplify right side
    18,780.30x = 370,118,203.09
  5. Step 5: Solve for x
    x = 370,118,203.09/18,780.30
  6. Step 6: Final answer
    x = 19,707.79

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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.