Home / 21,754.17-30,022.65-12,322.13

Finding the Fourth Proportional to 21,754.17, 30,022.65 and 12,322.13

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Solution

The fourth proportional to 21,754.17, 30,022.65 and 12,322.13 is: 17,005.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,754.17 : 30,022.65 = 12,322.13 : x
  2. Step 2: Convert to fraction form
    21,754.17/30,022.65 = 12,322.13/x
  3. Step 3: Cross multiply
    21,754.17x = 30,022.65 × 12,322.13
  4. Step 4: Simplify right side
    21,754.17x = 369,942,846.13
  5. Step 5: Solve for x
    x = 369,942,846.13/21,754.17
  6. Step 6: Final answer
    x = 17,005.61

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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.