Home / 28,400.49-39,199.75-16,471.01

Finding the Fourth Proportional to 28,400.49, 39,199.75 and 16,471.01

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Solution

The fourth proportional to 28,400.49, 39,199.75 and 16,471.01 is: 22,734.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,400.49 : 39,199.75 = 16,471.01 : x
  2. Step 2: Convert to fraction form
    28,400.49/39,199.75 = 16,471.01/x
  3. Step 3: Cross multiply
    28,400.49x = 39,199.75 × 16,471.01
  4. Step 4: Simplify right side
    28,400.49x = 645,659,531.07
  5. Step 5: Solve for x
    x = 645,659,531.07/28,400.49
  6. Step 6: Final answer
    x = 22,734.10

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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.