Home / 22,709.28-31,338.90-13,276.02

Finding the Fourth Proportional to 22,709.28, 31,338.90 and 13,276.02

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Solution

The fourth proportional to 22,709.28, 31,338.90 and 13,276.02 is: 18,320.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,709.28 : 31,338.90 = 13,276.02 : x
  2. Step 2: Convert to fraction form
    22,709.28/31,338.90 = 13,276.02/x
  3. Step 3: Cross multiply
    22,709.28x = 31,338.90 × 13,276.02
  4. Step 4: Simplify right side
    22,709.28x = 416,055,863.18
  5. Step 5: Solve for x
    x = 416,055,863.18/22,709.28
  6. Step 6: Final answer
    x = 18,320.96

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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.