Home / 19,288.17-28,950.08-11,907.05

Finding the Fourth Proportional to 19,288.17, 28,950.08 and 11,907.05

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Solution

The fourth proportional to 19,288.17, 28,950.08 and 11,907.05 is: 17,871.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,288.17 : 28,950.08 = 11,907.05 : x
  2. Step 2: Convert to fraction form
    19,288.17/28,950.08 = 11,907.05/x
  3. Step 3: Cross multiply
    19,288.17x = 28,950.08 × 11,907.05
  4. Step 4: Simplify right side
    19,288.17x = 344,710,050.06
  5. Step 5: Solve for x
    x = 344,710,050.06/19,288.17
  6. Step 6: Final answer
    x = 17,871.58

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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.