Home / 21,764.34-30,002.13-17,040.42

Finding the Fourth Proportional to 21,764.34, 30,002.13 and 17,040.42

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Solution

The fourth proportional to 21,764.34, 30,002.13 and 17,040.42 is: 23,490.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,764.34 : 30,002.13 = 17,040.42 : x
  2. Step 2: Convert to fraction form
    21,764.34/30,002.13 = 17,040.42/x
  3. Step 3: Cross multiply
    21,764.34x = 30,002.13 × 17,040.42
  4. Step 4: Simplify right side
    21,764.34x = 511,248,896.09
  5. Step 5: Solve for x
    x = 511,248,896.09/21,764.34
  6. Step 6: Final answer
    x = 23,490.21

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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.