Home / 28,461.96-39,296.88-18,414.72

Finding the Fourth Proportional to 28,461.96, 39,296.88 and 18,414.72

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Solution

The fourth proportional to 28,461.96, 39,296.88 and 18,414.72 is: 25,424.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,461.96 : 39,296.88 = 18,414.72 : x
  2. Step 2: Convert to fraction form
    28,461.96/39,296.88 = 18,414.72/x
  3. Step 3: Cross multiply
    28,461.96x = 39,296.88 × 18,414.72
  4. Step 4: Simplify right side
    28,461.96x = 723,641,042.07
  5. Step 5: Solve for x
    x = 723,641,042.07/28,461.96
  6. Step 6: Final answer
    x = 25,424.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.