Home / 21,741.88-30,022.18-13,798.20

Finding the Fourth Proportional to 21,741.88, 30,022.18 and 13,798.20

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Solution

The fourth proportional to 21,741.88, 30,022.18 and 13,798.20 is: 19,053.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,741.88 : 30,022.18 = 13,798.20 : x
  2. Step 2: Convert to fraction form
    21,741.88/30,022.18 = 13,798.20/x
  3. Step 3: Cross multiply
    21,741.88x = 30,022.18 × 13,798.20
  4. Step 4: Simplify right side
    21,741.88x = 414,252,044.08
  5. Step 5: Solve for x
    x = 414,252,044.08/21,741.88
  6. Step 6: Final answer
    x = 19,053.18

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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.