Home / 21,526.07-29,711.84-13,971.96

Finding the Fourth Proportional to 21,526.07, 29,711.84 and 13,971.96

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Solution

The fourth proportional to 21,526.07, 29,711.84 and 13,971.96 is: 19,285.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,526.07 : 29,711.84 = 13,971.96 : x
  2. Step 2: Convert to fraction form
    21,526.07/29,711.84 = 13,971.96/x
  3. Step 3: Cross multiply
    21,526.07x = 29,711.84 × 13,971.96
  4. Step 4: Simplify right side
    21,526.07x = 415,132,570.15
  5. Step 5: Solve for x
    x = 415,132,570.15/21,526.07
  6. Step 6: Final answer
    x = 19,285.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.