Home / 28,975.68-43,472.30-12,116.88

Finding the Fourth Proportional to 28,975.68, 43,472.30 and 12,116.88

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Solution

The fourth proportional to 28,975.68, 43,472.30 and 12,116.88 is: 18,178.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,975.68 : 43,472.30 = 12,116.88 : x
  2. Step 2: Convert to fraction form
    28,975.68/43,472.30 = 12,116.88/x
  3. Step 3: Cross multiply
    28,975.68x = 43,472.30 × 12,116.88
  4. Step 4: Simplify right side
    28,975.68x = 526,748,581.84
  5. Step 5: Solve for x
    x = 526,748,581.84/28,975.68
  6. Step 6: Final answer
    x = 18,178.99

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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.