Home / 21,899.12-30,185.28-17,110.69

Finding the Fourth Proportional to 21,899.12, 30,185.28 and 17,110.69

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Solution

The fourth proportional to 21,899.12, 30,185.28 and 17,110.69 is: 23,585.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,899.12 : 30,185.28 = 17,110.69 : x
  2. Step 2: Convert to fraction form
    21,899.12/30,185.28 = 17,110.69/x
  3. Step 3: Cross multiply
    21,899.12x = 30,185.28 × 17,110.69
  4. Step 4: Simplify right side
    21,899.12x = 516,490,893.18
  5. Step 5: Solve for x
    x = 516,490,893.18/21,899.12
  6. Step 6: Final answer
    x = 23,585.01

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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.