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Finding the Fourth Proportional to 17,976.03, 24,810.12 and 13,720.11

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Solution

The fourth proportional to 17,976.03, 24,810.12 and 13,720.11 is: 18,936.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,976.03 : 24,810.12 = 13,720.11 : x
  2. Step 2: Convert to fraction form
    17,976.03/24,810.12 = 13,720.11/x
  3. Step 3: Cross multiply
    17,976.03x = 24,810.12 × 13,720.11
  4. Step 4: Simplify right side
    17,976.03x = 340,397,575.51
  5. Step 5: Solve for x
    x = 340,397,575.51/17,976.03
  6. Step 6: Final answer
    x = 18,936.19

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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.