Home / 28,127.68-42,203.16-12,324.56

Finding the Fourth Proportional to 28,127.68, 42,203.16 and 12,324.56

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Solution

The fourth proportional to 28,127.68, 42,203.16 and 12,324.56 is: 18,491.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,127.68 : 42,203.16 = 12,324.56 : x
  2. Step 2: Convert to fraction form
    28,127.68/42,203.16 = 12,324.56/x
  3. Step 3: Cross multiply
    28,127.68x = 42,203.16 × 12,324.56
  4. Step 4: Simplify right side
    28,127.68x = 520,135,166.59
  5. Step 5: Solve for x
    x = 520,135,166.59/28,127.68
  6. Step 6: Final answer
    x = 18,491.93

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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.