Home / 30,826.67-42,540.84-16,679.51

Finding the Fourth Proportional to 30,826.67, 42,540.84 and 16,679.51

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Solution

The fourth proportional to 30,826.67, 42,540.84 and 16,679.51 is: 23,017.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,826.67 : 42,540.84 = 16,679.51 : x
  2. Step 2: Convert to fraction form
    30,826.67/42,540.84 = 16,679.51/x
  3. Step 3: Cross multiply
    30,826.67x = 42,540.84 × 16,679.51
  4. Step 4: Simplify right side
    30,826.67x = 709,560,153.48
  5. Step 5: Solve for x
    x = 709,560,153.48/30,826.67
  6. Step 6: Final answer
    x = 23,017.74

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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.