Home / 28,483.30-39,305.75-16,382.86

Finding the Fourth Proportional to 28,483.30, 39,305.75 and 16,382.86

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Solution

The fourth proportional to 28,483.30, 39,305.75 and 16,382.86 is: 22,607.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,483.30 : 39,305.75 = 16,382.86 : x
  2. Step 2: Convert to fraction form
    28,483.30/39,305.75 = 16,382.86/x
  3. Step 3: Cross multiply
    28,483.30x = 39,305.75 × 16,382.86
  4. Step 4: Simplify right side
    28,483.30x = 643,940,599.45
  5. Step 5: Solve for x
    x = 643,940,599.45/28,483.30
  6. Step 6: Final answer
    x = 22,607.65

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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.