Home / 31,205.97-43,060.91-18,459.63

Finding the Fourth Proportional to 31,205.97, 43,060.91 and 18,459.63

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Solution

The fourth proportional to 31,205.97, 43,060.91 and 18,459.63 is: 25,472.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,205.97 : 43,060.91 = 18,459.63 : x
  2. Step 2: Convert to fraction form
    31,205.97/43,060.91 = 18,459.63/x
  3. Step 3: Cross multiply
    31,205.97x = 43,060.91 × 18,459.63
  4. Step 4: Simplify right side
    31,205.97x = 794,888,466.06
  5. Step 5: Solve for x
    x = 794,888,466.06/31,205.97
  6. Step 6: Final answer
    x = 25,472.32

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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.