Home / 39,559.28-59,338.86-11,857.28

Finding the Fourth Proportional to 39,559.28, 59,338.86 and 11,857.28

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Solution

The fourth proportional to 39,559.28, 59,338.86 and 11,857.28 is: 17,785.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,559.28 : 59,338.86 = 11,857.28 : x
  2. Step 2: Convert to fraction form
    39,559.28/59,338.86 = 11,857.28/x
  3. Step 3: Cross multiply
    39,559.28x = 59,338.86 × 11,857.28
  4. Step 4: Simplify right side
    39,559.28x = 703,597,477.90
  5. Step 5: Solve for x
    x = 703,597,477.90/39,559.28
  6. Step 6: Final answer
    x = 17,785.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.