Home / 21,453.72-32,179.02-7,222.29

Finding the Fourth Proportional to 21,453.72, 32,179.02 and 7,222.29

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Solution

The fourth proportional to 21,453.72, 32,179.02 and 7,222.29 is: 10,832.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,453.72 : 32,179.02 = 7,222.29 : x
  2. Step 2: Convert to fraction form
    21,453.72/32,179.02 = 7,222.29/x
  3. Step 3: Cross multiply
    21,453.72x = 32,179.02 × 7,222.29
  4. Step 4: Simplify right side
    21,453.72x = 232,406,214.36
  5. Step 5: Solve for x
    x = 232,406,214.36/21,453.72
  6. Step 6: Final answer
    x = 10,832.91

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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.