Home / 28,122.65-38,810.96-16,185.72

Finding the Fourth Proportional to 28,122.65, 38,810.96 and 16,185.72

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Solution

The fourth proportional to 28,122.65, 38,810.96 and 16,185.72 is: 22,337.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,122.65 : 38,810.96 = 16,185.72 : x
  2. Step 2: Convert to fraction form
    28,122.65/38,810.96 = 16,185.72/x
  3. Step 3: Cross multiply
    28,122.65x = 38,810.96 × 16,185.72
  4. Step 4: Simplify right side
    28,122.65x = 628,183,331.49
  5. Step 5: Solve for x
    x = 628,183,331.49/28,122.65
  6. Step 6: Final answer
    x = 22,337.27

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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.