Home / 30,701.21-42,367.27-17,272.55

Finding the Fourth Proportional to 30,701.21, 42,367.27 and 17,272.55

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Solution

The fourth proportional to 30,701.21, 42,367.27 and 17,272.55 is: 23,835.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,701.21 : 42,367.27 = 17,272.55 : x
  2. Step 2: Convert to fraction form
    30,701.21/42,367.27 = 17,272.55/x
  3. Step 3: Cross multiply
    30,701.21x = 42,367.27 × 17,272.55
  4. Step 4: Simplify right side
    30,701.21x = 731,790,703.08
  5. Step 5: Solve for x
    x = 731,790,703.08/30,701.21
  6. Step 6: Final answer
    x = 23,835.90

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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.