Home / 28,576.77-42,930.95-20,277.33

Finding the Fourth Proportional to 28,576.77, 42,930.95 and 20,277.33

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Solution

The fourth proportional to 28,576.77, 42,930.95 and 20,277.33 is: 30,462.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,576.77 : 42,930.95 = 20,277.33 : x
  2. Step 2: Convert to fraction form
    28,576.77/42,930.95 = 20,277.33/x
  3. Step 3: Cross multiply
    28,576.77x = 42,930.95 × 20,277.33
  4. Step 4: Simplify right side
    28,576.77x = 870,524,938.98
  5. Step 5: Solve for x
    x = 870,524,938.98/28,576.77
  6. Step 6: Final answer
    x = 30,462.68

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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.