Home / 21,779.91-30,073.21-16,736.18

Finding the Fourth Proportional to 21,779.91, 30,073.21 and 16,736.18

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Solution

The fourth proportional to 21,779.91, 30,073.21 and 16,736.18 is: 23,108.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,779.91 : 30,073.21 = 16,736.18 : x
  2. Step 2: Convert to fraction form
    21,779.91/30,073.21 = 16,736.18/x
  3. Step 3: Cross multiply
    21,779.91x = 30,073.21 × 16,736.18
  4. Step 4: Simplify right side
    21,779.91x = 503,310,463.53
  5. Step 5: Solve for x
    x = 503,310,463.53/21,779.91
  6. Step 6: Final answer
    x = 23,108.93

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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.