Home / 30,701.40-42,367.88-17,272.66

Finding the Fourth Proportional to 30,701.40, 42,367.88 and 17,272.66

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Solution

The fourth proportional to 30,701.40, 42,367.88 and 17,272.66 is: 23,836.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,701.40 : 42,367.88 = 17,272.66 : x
  2. Step 2: Convert to fraction form
    30,701.40/42,367.88 = 17,272.66/x
  3. Step 3: Cross multiply
    30,701.40x = 42,367.88 × 17,272.66
  4. Step 4: Simplify right side
    30,701.40x = 731,805,986.16
  5. Step 5: Solve for x
    x = 731,805,986.16/30,701.40
  6. Step 6: Final answer
    x = 23,836.24

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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.