Home / 21,538.30-32,307.43-6,748.38

Finding the Fourth Proportional to 21,538.30, 32,307.43 and 6,748.38

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Solution

The fourth proportional to 21,538.30, 32,307.43 and 6,748.38 is: 10,122.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,538.30 : 32,307.43 = 6,748.38 : x
  2. Step 2: Convert to fraction form
    21,538.30/32,307.43 = 6,748.38/x
  3. Step 3: Cross multiply
    21,538.30x = 32,307.43 × 6,748.38
  4. Step 4: Simplify right side
    21,538.30x = 218,022,814.46
  5. Step 5: Solve for x
    x = 218,022,814.46/21,538.30
  6. Step 6: Final answer
    x = 10,122.56

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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.