Home / 21,416.61-32,121.05-5,830.59

Finding the Fourth Proportional to 21,416.61, 32,121.05 and 5,830.59

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Solution

The fourth proportional to 21,416.61, 32,121.05 and 5,830.59 is: 8,744.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,416.61 : 32,121.05 = 5,830.59 : x
  2. Step 2: Convert to fraction form
    21,416.61/32,121.05 = 5,830.59/x
  3. Step 3: Cross multiply
    21,416.61x = 32,121.05 × 5,830.59
  4. Step 4: Simplify right side
    21,416.61x = 187,284,643.77
  5. Step 5: Solve for x
    x = 187,284,643.77/21,416.61
  6. Step 6: Final answer
    x = 8,744.83

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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.