Home / 18,265.30-27,430.35-14,115.40

Finding the Fourth Proportional to 18,265.30, 27,430.35 and 14,115.40

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Solution

The fourth proportional to 18,265.30, 27,430.35 and 14,115.40 is: 21,198.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,265.30 : 27,430.35 = 14,115.40 : x
  2. Step 2: Convert to fraction form
    18,265.30/27,430.35 = 14,115.40/x
  3. Step 3: Cross multiply
    18,265.30x = 27,430.35 × 14,115.40
  4. Step 4: Simplify right side
    18,265.30x = 387,190,362.39
  5. Step 5: Solve for x
    x = 387,190,362.39/18,265.30
  6. Step 6: Final answer
    x = 21,198.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.