Home / 28,955.16-39,964.86-16,383.96

Finding the Fourth Proportional to 28,955.16, 39,964.86 and 16,383.96

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Solution

The fourth proportional to 28,955.16, 39,964.86 and 16,383.96 is: 22,613.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,955.16 : 39,964.86 = 16,383.96 : x
  2. Step 2: Convert to fraction form
    28,955.16/39,964.86 = 16,383.96/x
  3. Step 3: Cross multiply
    28,955.16x = 39,964.86 × 16,383.96
  4. Step 4: Simplify right side
    28,955.16x = 654,782,667.65
  5. Step 5: Solve for x
    x = 654,782,667.65/28,955.16
  6. Step 6: Final answer
    x = 22,613.68

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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.