Home / 28,789.96-39,730.22-16,692.79

Finding the Fourth Proportional to 28,789.96, 39,730.22 and 16,692.79

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Solution

The fourth proportional to 28,789.96, 39,730.22 and 16,692.79 is: 23,036.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,789.96 : 39,730.22 = 16,692.79 : x
  2. Step 2: Convert to fraction form
    28,789.96/39,730.22 = 16,692.79/x
  3. Step 3: Cross multiply
    28,789.96x = 39,730.22 × 16,692.79
  4. Step 4: Simplify right side
    28,789.96x = 663,208,219.11
  5. Step 5: Solve for x
    x = 663,208,219.11/28,789.96
  6. Step 6: Final answer
    x = 23,036.09

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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.