Home / 22,945.14-31,660.47-15,404.04

Finding the Fourth Proportional to 22,945.14, 31,660.47 and 15,404.04

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Solution

The fourth proportional to 22,945.14, 31,660.47 and 15,404.04 is: 21,255.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,945.14 : 31,660.47 = 15,404.04 : x
  2. Step 2: Convert to fraction form
    22,945.14/31,660.47 = 15,404.04/x
  3. Step 3: Cross multiply
    22,945.14x = 31,660.47 × 15,404.04
  4. Step 4: Simplify right side
    22,945.14x = 487,699,146.30
  5. Step 5: Solve for x
    x = 487,699,146.30/22,945.14
  6. Step 6: Final answer
    x = 21,255.01

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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.