Home / 21,511.68-32,262.67-9,045.78

Finding the Fourth Proportional to 21,511.68, 32,262.67 and 9,045.78

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Solution

The fourth proportional to 21,511.68, 32,262.67 and 9,045.78 is: 13,566.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,511.68 : 32,262.67 = 9,045.78 : x
  2. Step 2: Convert to fraction form
    21,511.68/32,262.67 = 9,045.78/x
  3. Step 3: Cross multiply
    21,511.68x = 32,262.67 × 9,045.78
  4. Step 4: Simplify right side
    21,511.68x = 291,841,015.03
  5. Step 5: Solve for x
    x = 291,841,015.03/21,511.68
  6. Step 6: Final answer
    x = 13,566.63

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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.