Home / 18,500.51-25,531.40-10,542.53

Finding the Fourth Proportional to 18,500.51, 25,531.40 and 10,542.53

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Solution

The fourth proportional to 18,500.51, 25,531.40 and 10,542.53 is: 14,549.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,500.51 : 25,531.40 = 10,542.53 : x
  2. Step 2: Convert to fraction form
    18,500.51/25,531.40 = 10,542.53/x
  3. Step 3: Cross multiply
    18,500.51x = 25,531.40 × 10,542.53
  4. Step 4: Simplify right side
    18,500.51x = 269,165,550.44
  5. Step 5: Solve for x
    x = 269,165,550.44/18,500.51
  6. Step 6: Final answer
    x = 14,549.09

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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.