Home / 28,471.24-42,706.91-8,749.68

Finding the Fourth Proportional to 28,471.24, 42,706.91 and 8,749.68

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Solution

The fourth proportional to 28,471.24, 42,706.91 and 8,749.68 is: 13,124.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,471.24 : 42,706.91 = 8,749.68 : x
  2. Step 2: Convert to fraction form
    28,471.24/42,706.91 = 8,749.68/x
  3. Step 3: Cross multiply
    28,471.24x = 42,706.91 × 8,749.68
  4. Step 4: Simplify right side
    28,471.24x = 373,671,796.29
  5. Step 5: Solve for x
    x = 373,671,796.29/28,471.24
  6. Step 6: Final answer
    x = 13,124.54

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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.