Home / 39,758.32-54,867.91-21,854.99

Finding the Fourth Proportional to 39,758.32, 54,867.91 and 21,854.99

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Solution

The fourth proportional to 39,758.32, 54,867.91 and 21,854.99 is: 30,160.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,758.32 : 54,867.91 = 21,854.99 : x
  2. Step 2: Convert to fraction form
    39,758.32/54,867.91 = 21,854.99/x
  3. Step 3: Cross multiply
    39,758.32x = 54,867.91 × 21,854.99
  4. Step 4: Simplify right side
    39,758.32x = 1,199,137,624.37
  5. Step 5: Solve for x
    x = 1,199,137,624.37/39,758.32
  6. Step 6: Final answer
    x = 30,160.67

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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.