Home / 23,115.16-31,898.94-13,045.72

Finding the Fourth Proportional to 23,115.16, 31,898.94 and 13,045.72

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Solution

The fourth proportional to 23,115.16, 31,898.94 and 13,045.72 is: 18,003.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,115.16 : 31,898.94 = 13,045.72 : x
  2. Step 2: Convert to fraction form
    23,115.16/31,898.94 = 13,045.72/x
  3. Step 3: Cross multiply
    23,115.16x = 31,898.94 × 13,045.72
  4. Step 4: Simplify right side
    23,115.16x = 416,144,639.54
  5. Step 5: Solve for x
    x = 416,144,639.54/23,115.16
  6. Step 6: Final answer
    x = 18,003.10

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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.