Home / 21,676.06-32,221.57-21,037.57

Finding the Fourth Proportional to 21,676.06, 32,221.57 and 21,037.57

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Solution

The fourth proportional to 21,676.06, 32,221.57 and 21,037.57 is: 31,272.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,676.06 : 32,221.57 = 21,037.57 : x
  2. Step 2: Convert to fraction form
    21,676.06/32,221.57 = 21,037.57/x
  3. Step 3: Cross multiply
    21,676.06x = 32,221.57 × 21,037.57
  4. Step 4: Simplify right side
    21,676.06x = 677,863,681.10
  5. Step 5: Solve for x
    x = 677,863,681.10/21,676.06
  6. Step 6: Final answer
    x = 31,272.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.