Home / 21,578.72-32,360.25-7,534.81

Finding the Fourth Proportional to 21,578.72, 32,360.25 and 7,534.81

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Solution

The fourth proportional to 21,578.72, 32,360.25 and 7,534.81 is: 11,299.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,578.72 : 32,360.25 = 7,534.81 : x
  2. Step 2: Convert to fraction form
    21,578.72/32,360.25 = 7,534.81/x
  3. Step 3: Cross multiply
    21,578.72x = 32,360.25 × 7,534.81
  4. Step 4: Simplify right side
    21,578.72x = 243,828,335.30
  5. Step 5: Solve for x
    x = 243,828,335.30/21,578.72
  6. Step 6: Final answer
    x = 11,299.48

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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.