Home / 21,590.14-32,388.90-9,904.36

Finding the Fourth Proportional to 21,590.14, 32,388.90 and 9,904.36

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Solution

The fourth proportional to 21,590.14, 32,388.90 and 9,904.36 is: 14,858.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,590.14 : 32,388.90 = 9,904.36 : x
  2. Step 2: Convert to fraction form
    21,590.14/32,388.90 = 9,904.36/x
  3. Step 3: Cross multiply
    21,590.14x = 32,388.90 × 9,904.36
  4. Step 4: Simplify right side
    21,590.14x = 320,791,325.60
  5. Step 5: Solve for x
    x = 320,791,325.60/21,590.14
  6. Step 6: Final answer
    x = 14,858.23

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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.