Home / 28,121.65-38,809.58-16,184.72

Finding the Fourth Proportional to 28,121.65, 38,809.58 and 16,184.72

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Solution

The fourth proportional to 28,121.65, 38,809.58 and 16,184.72 is: 22,335.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,121.65 : 38,809.58 = 16,184.72 : x
  2. Step 2: Convert to fraction form
    28,121.65/38,809.58 = 16,184.72/x
  3. Step 3: Cross multiply
    28,121.65x = 38,809.58 × 16,184.72
  4. Step 4: Simplify right side
    28,121.65x = 628,122,201.72
  5. Step 5: Solve for x
    x = 628,122,201.72/28,121.65
  6. Step 6: Final answer
    x = 22,335.90

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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.