Home / 21,670.89-32,447.90-14,155.83

Finding the Fourth Proportional to 21,670.89, 32,447.90 and 14,155.83

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Solution

The fourth proportional to 21,670.89, 32,447.90 and 14,155.83 is: 21,195.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,670.89 : 32,447.90 = 14,155.83 : x
  2. Step 2: Convert to fraction form
    21,670.89/32,447.90 = 14,155.83/x
  3. Step 3: Cross multiply
    21,670.89x = 32,447.90 × 14,155.83
  4. Step 4: Simplify right side
    21,670.89x = 459,326,956.26
  5. Step 5: Solve for x
    x = 459,326,956.26/21,670.89
  6. Step 6: Final answer
    x = 21,195.58

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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.