Home / 19,538.75-29,316.33-8,439.73

Finding the Fourth Proportional to 19,538.75, 29,316.33 and 8,439.73

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Solution

The fourth proportional to 19,538.75, 29,316.33 and 8,439.73 is: 12,663.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,538.75 : 29,316.33 = 8,439.73 : x
  2. Step 2: Convert to fraction form
    19,538.75/29,316.33 = 8,439.73/x
  3. Step 3: Cross multiply
    19,538.75x = 29,316.33 × 8,439.73
  4. Step 4: Simplify right side
    19,538.75x = 247,421,836.50
  5. Step 5: Solve for x
    x = 247,421,836.50/19,538.75
  6. Step 6: Final answer
    x = 12,663.13

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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.