Home / 19,971.86-29,948.18-11,654.32

Finding the Fourth Proportional to 19,971.86, 29,948.18 and 11,654.32

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Solution

The fourth proportional to 19,971.86, 29,948.18 and 11,654.32 is: 17,475.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,971.86 : 29,948.18 = 11,654.32 : x
  2. Step 2: Convert to fraction form
    19,971.86/29,948.18 = 11,654.32/x
  3. Step 3: Cross multiply
    19,971.86x = 29,948.18 × 11,654.32
  4. Step 4: Simplify right side
    19,971.86x = 349,025,673.14
  5. Step 5: Solve for x
    x = 349,025,673.14/19,971.86
  6. Step 6: Final answer
    x = 17,475.87

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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.