Home / 28,739.61-39,660.27-16,164.36

Finding the Fourth Proportional to 28,739.61, 39,660.27 and 16,164.36

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Solution

The fourth proportional to 28,739.61, 39,660.27 and 16,164.36 is: 22,306.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,739.61 : 39,660.27 = 16,164.36 : x
  2. Step 2: Convert to fraction form
    28,739.61/39,660.27 = 16,164.36/x
  3. Step 3: Cross multiply
    28,739.61x = 39,660.27 × 16,164.36
  4. Step 4: Simplify right side
    28,739.61x = 641,082,881.98
  5. Step 5: Solve for x
    x = 641,082,881.98/28,739.61
  6. Step 6: Final answer
    x = 22,306.60

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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.