Home / 21,097.04-31,635.64-12,334.64

Finding the Fourth Proportional to 21,097.04, 31,635.64 and 12,334.64

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Solution

The fourth proportional to 21,097.04, 31,635.64 and 12,334.64 is: 18,496.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,097.04 : 31,635.64 = 12,334.64 : x
  2. Step 2: Convert to fraction form
    21,097.04/31,635.64 = 12,334.64/x
  3. Step 3: Cross multiply
    21,097.04x = 31,635.64 × 12,334.64
  4. Step 4: Simplify right side
    21,097.04x = 390,214,230.57
  5. Step 5: Solve for x
    x = 390,214,230.57/21,097.04
  6. Step 6: Final answer
    x = 18,496.16

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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.