Home / 28,239.17-42,365.60-8,516.54

Finding the Fourth Proportional to 28,239.17, 42,365.60 and 8,516.54

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Solution

The fourth proportional to 28,239.17, 42,365.60 and 8,516.54 is: 12,776.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,239.17 : 42,365.60 = 8,516.54 : x
  2. Step 2: Convert to fraction form
    28,239.17/42,365.60 = 8,516.54/x
  3. Step 3: Cross multiply
    28,239.17x = 42,365.60 × 8,516.54
  4. Step 4: Simplify right side
    28,239.17x = 360,808,072.61
  5. Step 5: Solve for x
    x = 360,808,072.61/28,239.17
  6. Step 6: Final answer
    x = 12,776.86

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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.