Home / 30,591.12-42,214.32-18,013.44

Finding the Fourth Proportional to 30,591.12, 42,214.32 and 18,013.44

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Solution

The fourth proportional to 30,591.12, 42,214.32 and 18,013.44 is: 24,857.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,591.12 : 42,214.32 = 18,013.44 : x
  2. Step 2: Convert to fraction form
    30,591.12/42,214.32 = 18,013.44/x
  3. Step 3: Cross multiply
    30,591.12x = 42,214.32 × 18,013.44
  4. Step 4: Simplify right side
    30,591.12x = 760,425,120.46
  5. Step 5: Solve for x
    x = 760,425,120.46/30,591.12
  6. Step 6: Final answer
    x = 24,857.71

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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.