Home / 28,710.99-39,617.64-16,765.65

Finding the Fourth Proportional to 28,710.99, 39,617.64 and 16,765.65

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Solution

The fourth proportional to 28,710.99, 39,617.64 and 16,765.65 is: 23,134.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,710.99 : 39,617.64 = 16,765.65 : x
  2. Step 2: Convert to fraction form
    28,710.99/39,617.64 = 16,765.65/x
  3. Step 3: Cross multiply
    28,710.99x = 39,617.64 × 16,765.65
  4. Step 4: Simplify right side
    28,710.99x = 664,215,486.07
  5. Step 5: Solve for x
    x = 664,215,486.07/28,710.99
  6. Step 6: Final answer
    x = 23,134.54

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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.