Home / 28,482.30-39,305.15-16,382.42

Finding the Fourth Proportional to 28,482.30, 39,305.15 and 16,382.42

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Solution

The fourth proportional to 28,482.30, 39,305.15 and 16,382.42 is: 22,607.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,482.30 : 39,305.15 = 16,382.42 : x
  2. Step 2: Convert to fraction form
    28,482.30/39,305.15 = 16,382.42/x
  3. Step 3: Cross multiply
    28,482.30x = 39,305.15 × 16,382.42
  4. Step 4: Simplify right side
    28,482.30x = 643,913,405.85
  5. Step 5: Solve for x
    x = 643,913,405.85/28,482.30
  6. Step 6: Final answer
    x = 22,607.49

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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.