Home / 39,390.67-59,086.80-11,311.65

Finding the Fourth Proportional to 39,390.67, 59,086.80 and 11,311.65

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Solution

The fourth proportional to 39,390.67, 59,086.80 and 11,311.65 is: 16,967.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,390.67 : 59,086.80 = 11,311.65 : x
  2. Step 2: Convert to fraction form
    39,390.67/59,086.80 = 11,311.65/x
  3. Step 3: Cross multiply
    39,390.67x = 59,086.80 × 11,311.65
  4. Step 4: Simplify right side
    39,390.67x = 668,369,201.22
  5. Step 5: Solve for x
    x = 668,369,201.22/39,390.67
  6. Step 6: Final answer
    x = 16,967.70

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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.