Home / 21,192.53-31,789.04-6,402.11

Finding the Fourth Proportional to 21,192.53, 31,789.04 and 6,402.11

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Solution

The fourth proportional to 21,192.53, 31,789.04 and 6,402.11 is: 9,603.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,192.53 : 31,789.04 = 6,402.11 : x
  2. Step 2: Convert to fraction form
    21,192.53/31,789.04 = 6,402.11/x
  3. Step 3: Cross multiply
    21,192.53x = 31,789.04 × 6,402.11
  4. Step 4: Simplify right side
    21,192.53x = 203,516,739.92
  5. Step 5: Solve for x
    x = 203,516,739.92/21,192.53
  6. Step 6: Final answer
    x = 9,603.23

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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.