Home / 18,677.72-28,010.46-14,522.42

Finding the Fourth Proportional to 18,677.72, 28,010.46 and 14,522.42

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Solution

The fourth proportional to 18,677.72, 28,010.46 and 14,522.42 is: 21,778.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,677.72 : 28,010.46 = 14,522.42 : x
  2. Step 2: Convert to fraction form
    18,677.72/28,010.46 = 14,522.42/x
  3. Step 3: Cross multiply
    18,677.72x = 28,010.46 × 14,522.42
  4. Step 4: Simplify right side
    18,677.72x = 406,779,664.51
  5. Step 5: Solve for x
    x = 406,779,664.51/18,677.72
  6. Step 6: Final answer
    x = 21,778.87

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1.5x scale

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.