Home / 25,720.98-38,527.80-20,696.28

Finding the Fourth Proportional to 25,720.98, 38,527.80 and 20,696.28

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Solution

The fourth proportional to 25,720.98, 38,527.80 and 20,696.28 is: 31,001.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,720.98 : 38,527.80 = 20,696.28 : x
  2. Step 2: Convert to fraction form
    25,720.98/38,527.80 = 20,696.28/x
  3. Step 3: Cross multiply
    25,720.98x = 38,527.80 × 20,696.28
  4. Step 4: Simplify right side
    25,720.98x = 797,382,136.58
  5. Step 5: Solve for x
    x = 797,382,136.58/25,720.98
  6. Step 6: Final answer
    x = 31,001.23

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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.