Home / 28,701.27-39,620.25-16,762.68

Finding the Fourth Proportional to 28,701.27, 39,620.25 and 16,762.68

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Solution

The fourth proportional to 28,701.27, 39,620.25 and 16,762.68 is: 23,139.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,701.27 : 39,620.25 = 16,762.68 : x
  2. Step 2: Convert to fraction form
    28,701.27/39,620.25 = 16,762.68/x
  3. Step 3: Cross multiply
    28,701.27x = 39,620.25 × 16,762.68
  4. Step 4: Simplify right side
    28,701.27x = 664,141,572.27
  5. Step 5: Solve for x
    x = 664,141,572.27/28,701.27
  6. Step 6: Final answer
    x = 23,139.80

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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.