Home / 28,042.41-42,035.25-18,187.95

Finding the Fourth Proportional to 28,042.41, 42,035.25 and 18,187.95

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Solution

The fourth proportional to 28,042.41, 42,035.25 and 18,187.95 is: 27,263.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,042.41 : 42,035.25 = 18,187.95 : x
  2. Step 2: Convert to fraction form
    28,042.41/42,035.25 = 18,187.95/x
  3. Step 3: Cross multiply
    28,042.41x = 42,035.25 × 18,187.95
  4. Step 4: Simplify right side
    28,042.41x = 764,535,025.24
  5. Step 5: Solve for x
    x = 764,535,025.24/28,042.41
  6. Step 6: Final answer
    x = 27,263.53

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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.