Home / 19,530.80-26,950.08-11,571.20

Finding the Fourth Proportional to 19,530.80, 26,950.08 and 11,571.20

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Solution

The fourth proportional to 19,530.80, 26,950.08 and 11,571.20 is: 15,966.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,530.80 : 26,950.08 = 11,571.20 : x
  2. Step 2: Convert to fraction form
    19,530.80/26,950.08 = 11,571.20/x
  3. Step 3: Cross multiply
    19,530.80x = 26,950.08 × 11,571.20
  4. Step 4: Simplify right side
    19,530.80x = 311,844,765.70
  5. Step 5: Solve for x
    x = 311,844,765.70/19,530.80
  6. Step 6: Final answer
    x = 15,966.82

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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.