Home / 28,405.91-39,199.39-16,306.04

Finding the Fourth Proportional to 28,405.91, 39,199.39 and 16,306.04

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Solution

The fourth proportional to 28,405.91, 39,199.39 and 16,306.04 is: 22,501.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,405.91 : 39,199.39 = 16,306.04 : x
  2. Step 2: Convert to fraction form
    28,405.91/39,199.39 = 16,306.04/x
  3. Step 3: Cross multiply
    28,405.91x = 39,199.39 × 16,306.04
  4. Step 4: Simplify right side
    28,405.91x = 639,186,821.32
  5. Step 5: Solve for x
    x = 639,186,821.32/28,405.91
  6. Step 6: Final answer
    x = 22,501.90

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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.