Home / 22,660.04-31,266.09-13,705.79

Finding the Fourth Proportional to 22,660.04, 31,266.09 and 13,705.79

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Solution

The fourth proportional to 22,660.04, 31,266.09 and 13,705.79 is: 18,911.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,660.04 : 31,266.09 = 13,705.79 : x
  2. Step 2: Convert to fraction form
    22,660.04/31,266.09 = 13,705.79/x
  3. Step 3: Cross multiply
    22,660.04x = 31,266.09 × 13,705.79
  4. Step 4: Simplify right side
    22,660.04x = 428,526,307.33
  5. Step 5: Solve for x
    x = 428,526,307.33/22,660.04
  6. Step 6: Final answer
    x = 18,911.11

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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.