Home / 19,440.32-29,159.04-11,631.68

Finding the Fourth Proportional to 19,440.32, 29,159.04 and 11,631.68

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Solution

The fourth proportional to 19,440.32, 29,159.04 and 11,631.68 is: 17,446.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,440.32 : 29,159.04 = 11,631.68 : x
  2. Step 2: Convert to fraction form
    19,440.32/29,159.04 = 11,631.68/x
  3. Step 3: Cross multiply
    19,440.32x = 29,159.04 × 11,631.68
  4. Step 4: Simplify right side
    19,440.32x = 339,168,622.39
  5. Step 5: Solve for x
    x = 339,168,622.39/19,440.32
  6. Step 6: Final answer
    x = 17,446.66

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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.