Home / 28,867.30-43,305.99-9,142.18

Finding the Fourth Proportional to 28,867.30, 43,305.99 and 9,142.18

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Solution

The fourth proportional to 28,867.30, 43,305.99 and 9,142.18 is: 13,714.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,867.30 : 43,305.99 = 9,142.18 : x
  2. Step 2: Convert to fraction form
    28,867.30/43,305.99 = 9,142.18/x
  3. Step 3: Cross multiply
    28,867.30x = 43,305.99 × 9,142.18
  4. Step 4: Simplify right side
    28,867.30x = 395,911,155.66
  5. Step 5: Solve for x
    x = 395,911,155.66/28,867.30
  6. Step 6: Final answer
    x = 13,714.87

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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.