Home / 21,113.53-31,670.36-6,322.52

Finding the Fourth Proportional to 21,113.53, 31,670.36 and 6,322.52

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Solution

The fourth proportional to 21,113.53, 31,670.36 and 6,322.52 is: 9,483.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,113.53 : 31,670.36 = 6,322.52 : x
  2. Step 2: Convert to fraction form
    21,113.53/31,670.36 = 6,322.52/x
  3. Step 3: Cross multiply
    21,113.53x = 31,670.36 × 6,322.52
  4. Step 4: Simplify right side
    21,113.53x = 200,236,452.89
  5. Step 5: Solve for x
    x = 200,236,452.89/21,113.53
  6. Step 6: Final answer
    x = 9,483.80

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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.