Home / 19,242.40-28,823.19-12,218.82

Finding the Fourth Proportional to 19,242.40, 28,823.19 and 12,218.82

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Solution

The fourth proportional to 19,242.40, 28,823.19 and 12,218.82 is: 18,302.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,242.40 : 28,823.19 = 12,218.82 : x
  2. Step 2: Convert to fraction form
    19,242.40/28,823.19 = 12,218.82/x
  3. Step 3: Cross multiply
    19,242.40x = 28,823.19 × 12,218.82
  4. Step 4: Simplify right side
    19,242.40x = 352,185,370.44
  5. Step 5: Solve for x
    x = 352,185,370.44/19,242.40
  6. Step 6: Final answer
    x = 18,302.57

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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.