Home / 17,718.87-24,431.76-13,235.07

Finding the Fourth Proportional to 17,718.87, 24,431.76 and 13,235.07

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Solution

The fourth proportional to 17,718.87, 24,431.76 and 13,235.07 is: 18,249.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,718.87 : 24,431.76 = 13,235.07 : x
  2. Step 2: Convert to fraction form
    17,718.87/24,431.76 = 13,235.07/x
  3. Step 3: Cross multiply
    17,718.87x = 24,431.76 × 13,235.07
  4. Step 4: Simplify right side
    17,718.87x = 323,356,053.82
  5. Step 5: Solve for x
    x = 323,356,053.82/17,718.87
  6. Step 6: Final answer
    x = 18,249.25

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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.