Home / 21,136.44-31,695.33-6,342.53

Finding the Fourth Proportional to 21,136.44, 31,695.33 and 6,342.53

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Solution

The fourth proportional to 21,136.44, 31,695.33 and 6,342.53 is: 9,510.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,136.44 : 31,695.33 = 6,342.53 : x
  2. Step 2: Convert to fraction form
    21,136.44/31,695.33 = 6,342.53/x
  3. Step 3: Cross multiply
    21,136.44x = 31,695.33 × 6,342.53
  4. Step 4: Simplify right side
    21,136.44x = 201,028,482.32
  5. Step 5: Solve for x
    x = 201,028,482.32/21,136.44
  6. Step 6: Final answer
    x = 9,510.99

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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.