Home / 45,228.02-67,842.23-18,914.31

Finding the Fourth Proportional to 45,228.02, 67,842.23 and 18,914.31

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Solution

The fourth proportional to 45,228.02, 67,842.23 and 18,914.31 is: 28,371.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,228.02 : 67,842.23 = 18,914.31 : x
  2. Step 2: Convert to fraction form
    45,228.02/67,842.23 = 18,914.31/x
  3. Step 3: Cross multiply
    45,228.02x = 67,842.23 × 18,914.31
  4. Step 4: Simplify right side
    45,228.02x = 1,283,188,874.74
  5. Step 5: Solve for x
    x = 1,283,188,874.74/45,228.02
  6. Step 6: Final answer
    x = 28,371.55

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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.