Home / 28,398.79-39,178.01-16,907.27

Finding the Fourth Proportional to 28,398.79, 39,178.01 and 16,907.27

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Solution

The fourth proportional to 28,398.79, 39,178.01 and 16,907.27 is: 23,324.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,398.79 : 39,178.01 = 16,907.27 : x
  2. Step 2: Convert to fraction form
    28,398.79/39,178.01 = 16,907.27/x
  3. Step 3: Cross multiply
    28,398.79x = 39,178.01 × 16,907.27
  4. Step 4: Simplify right side
    28,398.79x = 662,392,912.71
  5. Step 5: Solve for x
    x = 662,392,912.71/28,398.79
  6. Step 6: Final answer
    x = 23,324.69

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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.