Home / 39,785.12-59,679.53-13,133.44

Finding the Fourth Proportional to 39,785.12, 59,679.53 and 13,133.44

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Solution

The fourth proportional to 39,785.12, 59,679.53 and 13,133.44 is: 19,700.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,785.12 : 59,679.53 = 13,133.44 : x
  2. Step 2: Convert to fraction form
    39,785.12/59,679.53 = 13,133.44/x
  3. Step 3: Cross multiply
    39,785.12x = 59,679.53 × 13,133.44
  4. Step 4: Simplify right side
    39,785.12x = 783,797,658.54
  5. Step 5: Solve for x
    x = 783,797,658.54/39,785.12
  6. Step 6: Final answer
    x = 19,700.77

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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.