Home / 21,057.68-31,593.72-9,379.04

Finding the Fourth Proportional to 21,057.68, 31,593.72 and 9,379.04

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Solution

The fourth proportional to 21,057.68, 31,593.72 and 9,379.04 is: 14,071.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,057.68 : 31,593.72 = 9,379.04 : x
  2. Step 2: Convert to fraction form
    21,057.68/31,593.72 = 9,379.04/x
  3. Step 3: Cross multiply
    21,057.68x = 31,593.72 × 9,379.04
  4. Step 4: Simplify right side
    21,057.68x = 296,318,763.63
  5. Step 5: Solve for x
    x = 296,318,763.63/21,057.68
  6. Step 6: Final answer
    x = 14,071.77

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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.