Home / 21,416.36-32,120.67-5,830.34

Finding the Fourth Proportional to 21,416.36, 32,120.67 and 5,830.34

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Solution

The fourth proportional to 21,416.36, 32,120.67 and 5,830.34 is: 8,744.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,416.36 : 32,120.67 = 5,830.34 : x
  2. Step 2: Convert to fraction form
    21,416.36/32,120.67 = 5,830.34/x
  3. Step 3: Cross multiply
    21,416.36x = 32,120.67 × 5,830.34
  4. Step 4: Simplify right side
    21,416.36x = 187,274,427.13
  5. Step 5: Solve for x
    x = 187,274,427.13/21,416.36
  6. Step 6: Final answer
    x = 8,744.46

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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.