Home / 17,189.74-23,720.61-10,115.20

Finding the Fourth Proportional to 17,189.74, 23,720.61 and 10,115.20

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Solution

The fourth proportional to 17,189.74, 23,720.61 and 10,115.20 is: 13,958.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,189.74 : 23,720.61 = 10,115.20 : x
  2. Step 2: Convert to fraction form
    17,189.74/23,720.61 = 10,115.20/x
  3. Step 3: Cross multiply
    17,189.74x = 23,720.61 × 10,115.20
  4. Step 4: Simplify right side
    17,189.74x = 239,938,714.27
  5. Step 5: Solve for x
    x = 239,938,714.27/17,189.74
  6. Step 6: Final answer
    x = 13,958.25

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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.