Home / 28,917.12-43,326.14-19,411.65

Finding the Fourth Proportional to 28,917.12, 43,326.14 and 19,411.65

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Solution

The fourth proportional to 28,917.12, 43,326.14 and 19,411.65 is: 29,084.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,917.12 : 43,326.14 = 19,411.65 : x
  2. Step 2: Convert to fraction form
    28,917.12/43,326.14 = 19,411.65/x
  3. Step 3: Cross multiply
    28,917.12x = 43,326.14 × 19,411.65
  4. Step 4: Simplify right side
    28,917.12x = 841,031,768.47
  5. Step 5: Solve for x
    x = 841,031,768.47/28,917.12
  6. Step 6: Final answer
    x = 29,084.21

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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.