Home / 21,305.22-29,393.42-12,349.46

Finding the Fourth Proportional to 21,305.22, 29,393.42 and 12,349.46

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Solution

The fourth proportional to 21,305.22, 29,393.42 and 12,349.46 is: 17,037.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,305.22 : 29,393.42 = 12,349.46 : x
  2. Step 2: Convert to fraction form
    21,305.22/29,393.42 = 12,349.46/x
  3. Step 3: Cross multiply
    21,305.22x = 29,393.42 × 12,349.46
  4. Step 4: Simplify right side
    21,305.22x = 362,992,864.55
  5. Step 5: Solve for x
    x = 362,992,864.55/21,305.22
  6. Step 6: Final answer
    x = 17,037.74

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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.