Home / 21,975.98-32,965.32-7,186.46

Finding the Fourth Proportional to 21,975.98, 32,965.32 and 7,186.46

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Solution

The fourth proportional to 21,975.98, 32,965.32 and 7,186.46 is: 10,780.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,975.98 : 32,965.32 = 7,186.46 : x
  2. Step 2: Convert to fraction form
    21,975.98/32,965.32 = 7,186.46/x
  3. Step 3: Cross multiply
    21,975.98x = 32,965.32 × 7,186.46
  4. Step 4: Simplify right side
    21,975.98x = 236,903,953.57
  5. Step 5: Solve for x
    x = 236,903,953.57/21,975.98
  6. Step 6: Final answer
    x = 10,780.13

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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.