Home / 19,983.98-27,587.90-12,432.76

Finding the Fourth Proportional to 19,983.98, 27,587.90 and 12,432.76

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Solution

The fourth proportional to 19,983.98, 27,587.90 and 12,432.76 is: 17,163.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,983.98 : 27,587.90 = 12,432.76 : x
  2. Step 2: Convert to fraction form
    19,983.98/27,587.90 = 12,432.76/x
  3. Step 3: Cross multiply
    19,983.98x = 27,587.90 × 12,432.76
  4. Step 4: Simplify right side
    19,983.98x = 342,993,739.60
  5. Step 5: Solve for x
    x = 342,993,739.60/19,983.98
  6. Step 6: Final answer
    x = 17,163.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.