Home / 28,789.76-39,732.72-16,852.40

Finding the Fourth Proportional to 28,789.76, 39,732.72 and 16,852.40

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Solution

The fourth proportional to 28,789.76, 39,732.72 and 16,852.40 is: 23,257.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,789.76 : 39,732.72 = 16,852.40 : x
  2. Step 2: Convert to fraction form
    28,789.76/39,732.72 = 16,852.40/x
  3. Step 3: Cross multiply
    28,789.76x = 39,732.72 × 16,852.40
  4. Step 4: Simplify right side
    28,789.76x = 669,591,690.53
  5. Step 5: Solve for x
    x = 669,591,690.53/28,789.76
  6. Step 6: Final answer
    x = 23,257.98

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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.