Home / 21,289.02-31,929.88-5,703

Finding the Fourth Proportional to 21,289.02, 31,929.88 and 5,703

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Solution

The fourth proportional to 21,289.02, 31,929.88 and 5,703 is: 8,553.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,289.02 : 31,929.88 = 5,703 : x
  2. Step 2: Convert to fraction form
    21,289.02/31,929.88 = 5,703/x
  3. Step 3: Cross multiply
    21,289.02x = 31,929.88 × 5,703
  4. Step 4: Simplify right side
    21,289.02x = 182,096,105.64
  5. Step 5: Solve for x
    x = 182,096,105.64/21,289.02
  6. Step 6: Final answer
    x = 8,553.52

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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.