Home / 19,800.45-27,325.19-12,039.25

Finding the Fourth Proportional to 19,800.45, 27,325.19 and 12,039.25

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Solution

The fourth proportional to 19,800.45, 27,325.19 and 12,039.25 is: 16,614.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,800.45 : 27,325.19 = 12,039.25 : x
  2. Step 2: Convert to fraction form
    19,800.45/27,325.19 = 12,039.25/x
  3. Step 3: Cross multiply
    19,800.45x = 27,325.19 × 12,039.25
  4. Step 4: Simplify right side
    19,800.45x = 328,974,606.80
  5. Step 5: Solve for x
    x = 328,974,606.80/19,800.45
  6. Step 6: Final answer
    x = 16,614.50

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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.