Home / 21,678.53-32,536.31-15,453.77

Finding the Fourth Proportional to 21,678.53, 32,536.31 and 15,453.77

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Solution

The fourth proportional to 21,678.53, 32,536.31 and 15,453.77 is: 23,193.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,678.53 : 32,536.31 = 15,453.77 : x
  2. Step 2: Convert to fraction form
    21,678.53/32,536.31 = 15,453.77/x
  3. Step 3: Cross multiply
    21,678.53x = 32,536.31 × 15,453.77
  4. Step 4: Simplify right side
    21,678.53x = 502,808,411.44
  5. Step 5: Solve for x
    x = 502,808,411.44/21,678.53
  6. Step 6: Final answer
    x = 23,193.85

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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.