Home / 30,207.91-41,688.31-16,779.22

Finding the Fourth Proportional to 30,207.91, 41,688.31 and 16,779.22

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Solution

The fourth proportional to 30,207.91, 41,688.31 and 16,779.22 is: 23,156.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,207.91 : 41,688.31 = 16,779.22 : x
  2. Step 2: Convert to fraction form
    30,207.91/41,688.31 = 16,779.22/x
  3. Step 3: Cross multiply
    30,207.91x = 41,688.31 × 16,779.22
  4. Step 4: Simplify right side
    30,207.91x = 699,497,324.92
  5. Step 5: Solve for x
    x = 699,497,324.92/30,207.91
  6. Step 6: Final answer
    x = 23,156.10

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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.