Home / 28,868.65-43,316.64-19,997.63

Finding the Fourth Proportional to 28,868.65, 43,316.64 and 19,997.63

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Solution

The fourth proportional to 28,868.65, 43,316.64 and 19,997.63 is: 30,005.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,868.65 : 43,316.64 = 19,997.63 : x
  2. Step 2: Convert to fraction form
    28,868.65/43,316.64 = 19,997.63/x
  3. Step 3: Cross multiply
    28,868.65x = 43,316.64 × 19,997.63
  4. Step 4: Simplify right side
    28,868.65x = 866,230,139.56
  5. Step 5: Solve for x
    x = 866,230,139.56/28,868.65
  6. Step 6: Final answer
    x = 30,005.92

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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.