Home / 28,483.22-39,305.65-16,382.78

Finding the Fourth Proportional to 28,483.22, 39,305.65 and 16,382.78

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Solution

The fourth proportional to 28,483.22, 39,305.65 and 16,382.78 is: 22,607.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,483.22 : 39,305.65 = 16,382.78 : x
  2. Step 2: Convert to fraction form
    28,483.22/39,305.65 = 16,382.78/x
  3. Step 3: Cross multiply
    28,483.22x = 39,305.65 × 16,382.78
  4. Step 4: Simplify right side
    28,483.22x = 643,935,978.43
  5. Step 5: Solve for x
    x = 643,935,978.43/28,483.22
  6. Step 6: Final answer
    x = 22,607.56

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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.