Home / 28,179.25-42,272.06-9,460.59

Finding the Fourth Proportional to 28,179.25, 42,272.06 and 9,460.59

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Solution

The fourth proportional to 28,179.25, 42,272.06 and 9,460.59 is: 14,191.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,179.25 : 42,272.06 = 9,460.59 : x
  2. Step 2: Convert to fraction form
    28,179.25/42,272.06 = 9,460.59/x
  3. Step 3: Cross multiply
    28,179.25x = 42,272.06 × 9,460.59
  4. Step 4: Simplify right side
    28,179.25x = 399,918,628.12
  5. Step 5: Solve for x
    x = 399,918,628.12/28,179.25
  6. Step 6: Final answer
    x = 14,191.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.