Home / 28,382.58-42,590.88-11,742.84

Finding the Fourth Proportional to 28,382.58, 42,590.88 and 11,742.84

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Solution

The fourth proportional to 28,382.58, 42,590.88 and 11,742.84 is: 17,621.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,382.58 : 42,590.88 = 11,742.84 : x
  2. Step 2: Convert to fraction form
    28,382.58/42,590.88 = 11,742.84/x
  3. Step 3: Cross multiply
    28,382.58x = 42,590.88 × 11,742.84
  4. Step 4: Simplify right side
    28,382.58x = 500,137,889.30
  5. Step 5: Solve for x
    x = 500,137,889.30/28,382.58
  6. Step 6: Final answer
    x = 17,621.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.