Home / 20,170.10-30,218.70-17,837.30

Finding the Fourth Proportional to 20,170.10, 30,218.70 and 17,837.30

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Solution

The fourth proportional to 20,170.10, 30,218.70 and 17,837.30 is: 26,723.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,170.10 : 30,218.70 = 17,837.30 : x
  2. Step 2: Convert to fraction form
    20,170.10/30,218.70 = 17,837.30/x
  3. Step 3: Cross multiply
    20,170.10x = 30,218.70 × 17,837.30
  4. Step 4: Simplify right side
    20,170.10x = 539,020,017.51
  5. Step 5: Solve for x
    x = 539,020,017.51/20,170.10
  6. Step 6: Final answer
    x = 26,723.72

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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.