Home / 21,594.42-32,318.48-13,279.71

Finding the Fourth Proportional to 21,594.42, 32,318.48 and 13,279.71

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Solution

The fourth proportional to 21,594.42, 32,318.48 and 13,279.71 is: 19,874.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,594.42 : 32,318.48 = 13,279.71 : x
  2. Step 2: Convert to fraction form
    21,594.42/32,318.48 = 13,279.71/x
  3. Step 3: Cross multiply
    21,594.42x = 32,318.48 × 13,279.71
  4. Step 4: Simplify right side
    21,594.42x = 429,179,814.05
  5. Step 5: Solve for x
    x = 429,179,814.05/21,594.42
  6. Step 6: Final answer
    x = 19,874.57

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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.