Home / 22,718.75-31,353.30-13,767.03

Finding the Fourth Proportional to 22,718.75, 31,353.30 and 13,767.03

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Solution

The fourth proportional to 22,718.75, 31,353.30 and 13,767.03 is: 18,999.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,718.75 : 31,353.30 = 13,767.03 : x
  2. Step 2: Convert to fraction form
    22,718.75/31,353.30 = 13,767.03/x
  3. Step 3: Cross multiply
    22,718.75x = 31,353.30 × 13,767.03
  4. Step 4: Simplify right side
    22,718.75x = 431,641,821.70
  5. Step 5: Solve for x
    x = 431,641,821.70/22,718.75
  6. Step 6: Final answer
    x = 18,999.37

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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.