Home / 21,672.37-32,487.40-10,578.61

Finding the Fourth Proportional to 21,672.37, 32,487.40 and 10,578.61

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Solution

The fourth proportional to 21,672.37, 32,487.40 and 10,578.61 is: 15,857.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,672.37 : 32,487.40 = 10,578.61 : x
  2. Step 2: Convert to fraction form
    21,672.37/32,487.40 = 10,578.61/x
  3. Step 3: Cross multiply
    21,672.37x = 32,487.40 × 10,578.61
  4. Step 4: Simplify right side
    21,672.37x = 343,671,534.51
  5. Step 5: Solve for x
    x = 343,671,534.51/21,672.37
  6. Step 6: Final answer
    x = 15,857.59

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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.