Home / 21,837.56-32,769.05-9,186.40

Finding the Fourth Proportional to 21,837.56, 32,769.05 and 9,186.40

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Solution

The fourth proportional to 21,837.56, 32,769.05 and 9,186.40 is: 13,784.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,837.56 : 32,769.05 = 9,186.40 : x
  2. Step 2: Convert to fraction form
    21,837.56/32,769.05 = 9,186.40/x
  3. Step 3: Cross multiply
    21,837.56x = 32,769.05 × 9,186.40
  4. Step 4: Simplify right side
    21,837.56x = 301,029,541.96
  5. Step 5: Solve for x
    x = 301,029,541.96/21,837.56
  6. Step 6: Final answer
    x = 13,784.94

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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.