Home / 28,216.23-42,236.09-18,207.59

Finding the Fourth Proportional to 28,216.23, 42,236.09 and 18,207.59

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Solution

The fourth proportional to 28,216.23, 42,236.09 and 18,207.59 is: 27,254.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,216.23 : 42,236.09 = 18,207.59 : x
  2. Step 2: Convert to fraction form
    28,216.23/42,236.09 = 18,207.59/x
  3. Step 3: Cross multiply
    28,216.23x = 42,236.09 × 18,207.59
  4. Step 4: Simplify right side
    28,216.23x = 769,017,409.92
  5. Step 5: Solve for x
    x = 769,017,409.92/28,216.23
  6. Step 6: Final answer
    x = 27,254.44

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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.