Home / 23,143.08-31,935.64-13,072.53

Finding the Fourth Proportional to 23,143.08, 31,935.64 and 13,072.53

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Solution

The fourth proportional to 23,143.08, 31,935.64 and 13,072.53 is: 18,039.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,143.08 : 31,935.64 = 13,072.53 : x
  2. Step 2: Convert to fraction form
    23,143.08/31,935.64 = 13,072.53/x
  3. Step 3: Cross multiply
    23,143.08x = 31,935.64 × 13,072.53
  4. Step 4: Simplify right side
    23,143.08x = 417,479,611.97
  5. Step 5: Solve for x
    x = 417,479,611.97/23,143.08
  6. Step 6: Final answer
    x = 18,039.07

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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.