Home / 19,645.20-27,110.40-10,692.68

Finding the Fourth Proportional to 19,645.20, 27,110.40 and 10,692.68

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Solution

The fourth proportional to 19,645.20, 27,110.40 and 10,692.68 is: 14,755.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,645.20 : 27,110.40 = 10,692.68 : x
  2. Step 2: Convert to fraction form
    19,645.20/27,110.40 = 10,692.68/x
  3. Step 3: Cross multiply
    19,645.20x = 27,110.40 × 10,692.68
  4. Step 4: Simplify right side
    19,645.20x = 289,882,831.87
  5. Step 5: Solve for x
    x = 289,882,831.87/19,645.20
  6. Step 6: Final answer
    x = 14,755.91

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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.