Home / 21,939.60-32,887.80-10,837.20

Finding the Fourth Proportional to 21,939.60, 32,887.80 and 10,837.20

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Solution

The fourth proportional to 21,939.60, 32,887.80 and 10,837.20 is: 16,245.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,939.60 : 32,887.80 = 10,837.20 : x
  2. Step 2: Convert to fraction form
    21,939.60/32,887.80 = 10,837.20/x
  3. Step 3: Cross multiply
    21,939.60x = 32,887.80 × 10,837.20
  4. Step 4: Simplify right side
    21,939.60x = 356,411,666.16
  5. Step 5: Solve for x
    x = 356,411,666.16/21,939.60
  6. Step 6: Final answer
    x = 16,245.13

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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.