Home / 22,715.03-31,350.11-13,641.01

Finding the Fourth Proportional to 22,715.03, 31,350.11 and 13,641.01

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Solution

The fourth proportional to 22,715.03, 31,350.11 and 13,641.01 is: 18,826.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,715.03 : 31,350.11 = 13,641.01 : x
  2. Step 2: Convert to fraction form
    22,715.03/31,350.11 = 13,641.01/x
  3. Step 3: Cross multiply
    22,715.03x = 31,350.11 × 13,641.01
  4. Step 4: Simplify right side
    22,715.03x = 427,647,017.43
  5. Step 5: Solve for x
    x = 427,647,017.43/22,715.03
  6. Step 6: Final answer
    x = 18,826.61

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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.