Home / 39,712.07-59,550.61-18,658.09

Finding the Fourth Proportional to 39,712.07, 59,550.61 and 18,658.09

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Solution

The fourth proportional to 39,712.07, 59,550.61 and 18,658.09 is: 27,978.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,712.07 : 59,550.61 = 18,658.09 : x
  2. Step 2: Convert to fraction form
    39,712.07/59,550.61 = 18,658.09/x
  3. Step 3: Cross multiply
    39,712.07x = 59,550.61 × 18,658.09
  4. Step 4: Simplify right side
    39,712.07x = 1,111,100,640.93
  5. Step 5: Solve for x
    x = 1,111,100,640.93/39,712.07
  6. Step 6: Final answer
    x = 27,978.92

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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.