Home / 21,422.46-29,563.30-12,342.81

Finding the Fourth Proportional to 21,422.46, 29,563.30 and 12,342.81

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Solution

The fourth proportional to 21,422.46, 29,563.30 and 12,342.81 is: 17,033.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,422.46 : 29,563.30 = 12,342.81 : x
  2. Step 2: Convert to fraction form
    21,422.46/29,563.30 = 12,342.81/x
  3. Step 3: Cross multiply
    21,422.46x = 29,563.30 × 12,342.81
  4. Step 4: Simplify right side
    21,422.46x = 364,894,387.06
  5. Step 5: Solve for x
    x = 364,894,387.06/21,422.46
  6. Step 6: Final answer
    x = 17,033.26

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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.