Home / 39,865.16-59,797.85-11,785.70

Finding the Fourth Proportional to 39,865.16, 59,797.85 and 11,785.70

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Solution

The fourth proportional to 39,865.16, 59,797.85 and 11,785.70 is: 17,678.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,865.16 : 59,797.85 = 11,785.70 : x
  2. Step 2: Convert to fraction form
    39,865.16/59,797.85 = 11,785.70/x
  3. Step 3: Cross multiply
    39,865.16x = 59,797.85 × 11,785.70
  4. Step 4: Simplify right side
    39,865.16x = 704,759,611.31
  5. Step 5: Solve for x
    x = 704,759,611.31/39,865.16
  6. Step 6: Final answer
    x = 17,678.58

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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.