Home / 30,826.18-42,540.12-16,679.02

Finding the Fourth Proportional to 30,826.18, 42,540.12 and 16,679.02

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Solution

The fourth proportional to 30,826.18, 42,540.12 and 16,679.02 is: 23,017.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,826.18 : 42,540.12 = 16,679.02 : x
  2. Step 2: Convert to fraction form
    30,826.18/42,540.12 = 16,679.02/x
  3. Step 3: Cross multiply
    30,826.18x = 42,540.12 × 16,679.02
  4. Step 4: Simplify right side
    30,826.18x = 709,527,512.28
  5. Step 5: Solve for x
    x = 709,527,512.28/30,826.18
  6. Step 6: Final answer
    x = 23,017.04

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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.