Home / 21,649.86-32,437.80-11,771.49

Finding the Fourth Proportional to 21,649.86, 32,437.80 and 11,771.49

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Solution

The fourth proportional to 21,649.86, 32,437.80 and 11,771.49 is: 17,637.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,649.86 : 32,437.80 = 11,771.49 : x
  2. Step 2: Convert to fraction form
    21,649.86/32,437.80 = 11,771.49/x
  3. Step 3: Cross multiply
    21,649.86x = 32,437.80 × 11,771.49
  4. Step 4: Simplify right side
    21,649.86x = 381,841,238.32
  5. Step 5: Solve for x
    x = 381,841,238.32/21,649.86
  6. Step 6: Final answer
    x = 17,637.12

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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.