Home / 21,578.22-32,359.50-7,534.31

Finding the Fourth Proportional to 21,578.22, 32,359.50 and 7,534.31

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Solution

The fourth proportional to 21,578.22, 32,359.50 and 7,534.31 is: 11,298.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,578.22 : 32,359.50 = 7,534.31 : x
  2. Step 2: Convert to fraction form
    21,578.22/32,359.50 = 7,534.31/x
  3. Step 3: Cross multiply
    21,578.22x = 32,359.50 × 7,534.31
  4. Step 4: Simplify right side
    21,578.22x = 243,806,342.65
  5. Step 5: Solve for x
    x = 243,806,342.65/21,578.22
  6. Step 6: Final answer
    x = 11,298.72

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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.