Home / 22,422.64-30,944.28-12,996.40

Finding the Fourth Proportional to 22,422.64, 30,944.28 and 12,996.40

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Solution

The fourth proportional to 22,422.64, 30,944.28 and 12,996.40 is: 17,935.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,422.64 : 30,944.28 = 12,996.40 : x
  2. Step 2: Convert to fraction form
    22,422.64/30,944.28 = 12,996.40/x
  3. Step 3: Cross multiply
    22,422.64x = 30,944.28 × 12,996.40
  4. Step 4: Simplify right side
    22,422.64x = 402,164,240.59
  5. Step 5: Solve for x
    x = 402,164,240.59/22,422.64
  6. Step 6: Final answer
    x = 17,935.63

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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.