Home / 28,782.20-39,719.40-16,207.04

Finding the Fourth Proportional to 28,782.20, 39,719.40 and 16,207.04

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Solution

The fourth proportional to 28,782.20, 39,719.40 and 16,207.04 is: 22,365.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,782.20 : 39,719.40 = 16,207.04 : x
  2. Step 2: Convert to fraction form
    28,782.20/39,719.40 = 16,207.04/x
  3. Step 3: Cross multiply
    28,782.20x = 39,719.40 × 16,207.04
  4. Step 4: Simplify right side
    28,782.20x = 643,733,904.58
  5. Step 5: Solve for x
    x = 643,733,904.58/28,782.20
  6. Step 6: Final answer
    x = 22,365.69

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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.