Home / 21,113.02-31,660.62-6,324.04

Finding the Fourth Proportional to 21,113.02, 31,660.62 and 6,324.04

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Solution

The fourth proportional to 21,113.02, 31,660.62 and 6,324.04 is: 9,483.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,113.02 : 31,660.62 = 6,324.04 : x
  2. Step 2: Convert to fraction form
    21,113.02/31,660.62 = 6,324.04/x
  3. Step 3: Cross multiply
    21,113.02x = 31,660.62 × 6,324.04
  4. Step 4: Simplify right side
    21,113.02x = 200,223,027.30
  5. Step 5: Solve for x
    x = 200,223,027.30/21,113.02
  6. Step 6: Final answer
    x = 9,483.39

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1.5x scale

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.