Home / 28,836.32-39,790.56-16,896.92

Finding the Fourth Proportional to 28,836.32, 39,790.56 and 16,896.92

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Solution

The fourth proportional to 28,836.32, 39,790.56 and 16,896.92 is: 23,315.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,836.32 : 39,790.56 = 16,896.92 : x
  2. Step 2: Convert to fraction form
    28,836.32/39,790.56 = 16,896.92/x
  3. Step 3: Cross multiply
    28,836.32x = 39,790.56 × 16,896.92
  4. Step 4: Simplify right side
    28,836.32x = 672,337,909.08
  5. Step 5: Solve for x
    x = 672,337,909.08/28,836.32
  6. Step 6: Final answer
    x = 23,315.66

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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.