Home / 28,322.91-42,490.04-15,860.66

Finding the Fourth Proportional to 28,322.91, 42,490.04 and 15,860.66

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Solution

The fourth proportional to 28,322.91, 42,490.04 and 15,860.66 is: 23,794.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,322.91 : 42,490.04 = 15,860.66 : x
  2. Step 2: Convert to fraction form
    28,322.91/42,490.04 = 15,860.66/x
  3. Step 3: Cross multiply
    28,322.91x = 42,490.04 × 15,860.66
  4. Step 4: Simplify right side
    28,322.91x = 673,919,786.07
  5. Step 5: Solve for x
    x = 673,919,786.07/28,322.91
  6. Step 6: Final answer
    x = 23,794.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.