Home / 19,971.12-29,945.88-6,118.32

Finding the Fourth Proportional to 19,971.12, 29,945.88 and 6,118.32

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Solution

The fourth proportional to 19,971.12, 29,945.88 and 6,118.32 is: 9,174.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,971.12 : 29,945.88 = 6,118.32 : x
  2. Step 2: Convert to fraction form
    19,971.12/29,945.88 = 6,118.32/x
  3. Step 3: Cross multiply
    19,971.12x = 29,945.88 × 6,118.32
  4. Step 4: Simplify right side
    19,971.12x = 183,218,476.52
  5. Step 5: Solve for x
    x = 183,218,476.52/19,971.12
  6. Step 6: Final answer
    x = 9,174.17

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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.