Home / 28,464.12-42,714.63-12,881.88

Finding the Fourth Proportional to 28,464.12, 42,714.63 and 12,881.88

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Solution

The fourth proportional to 28,464.12, 42,714.63 and 12,881.88 is: 19,331.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,464.12 : 42,714.63 = 12,881.88 : x
  2. Step 2: Convert to fraction form
    28,464.12/42,714.63 = 12,881.88/x
  3. Step 3: Cross multiply
    28,464.12x = 42,714.63 × 12,881.88
  4. Step 4: Simplify right side
    28,464.12x = 550,244,737.90
  5. Step 5: Solve for x
    x = 550,244,737.90/28,464.12
  6. Step 6: Final answer
    x = 19,331.17

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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.